A construction worker on the 24th floor of a building project accidentally drops a wrench and yells “Look out below” Could a person of ground level hear his warning in time to get out of the way? The speed of sound is about 1100 feet per second

Answers

Answer 1

Answer:

Assuming the height at which the wrench was dropped is 336 feet,

the person will hear the sound in 0.3 sec and the wrench will hit the ground only after 4.58 seconds so there is enough time to get out of the way

Explanation:

Without knowing the exact height at which the 24th floor is located, it would be difficult to determine whether the wrench will hit the ground before the sound hits the ground

Realistically, we can assume each floor of the building is 14' high

So the height at which the 24th floor is located is 24 x 14 = 336 feet

To travel 336 feet at 1100 feet per second, sound will take 336/1100 seconds which is 0.30 second

Let's compute the time taken for the wrench to hit the ground

The acceleration due to gravity is usually taken to be 16 feet/second²

The displacement which is the distance traveled by an object with an initial velocity of u in time t is given by the equation:
s = ut + (1/2)t²

Here the initial velocity is 0

So the equation is
s = 1/2 x 32 x t² = 16t²

To cover 336 feet we substitute 336 for s and get

336 = 16t²

t² = 336/16

t = ±√(336/16) ≈ 4.58 seconds (we only take the positive root)

So the person will hear the sound in 0.3 sec and the wrench will hit the ground only after 4.58 seconds so there is enough time to get out of the way

In general, we can state that if the height from which the wrench was dropped is h then time t taken for wrench too hit the ground is

t = √(h/16) seconds

If this is greater than the time taken for sound to travel the same distance then the person can get out of the way


Related Questions

[tex]{\huge\color{green}{\boxed{\fcolorbox{red}{blue}{꧁QUESTION꧂}}}}[/tex]

What is Mutual Induction ?​

Answers

When a change in current in one coil induces EMF in the other coil, this phenomenon is called mutual induction.

The strength of the induced EMF depends on the mutual inductance of the coil pair. Mutual inductance has the SI unit of Henry, the same as self-inductance. Digital signal processing is another example where counter-rotating coils reduce mutual inductance. Fast on, off electromotive forces representing 1s and 0s in digital circuits create complex time-varying magnetic fields. EMF can occur on adjacent conductors.

Mutual inductance is the fundamental working principle of transformers, motors, generators, and other electrical components that interact with another magnetic field. Mutual induction can then be defined as the current flowing in one coil inducing a voltage in the adjacent coil. Mutual induction is the ability of an inductor in one circuit to induce a voltage in another circuit.

Learn more about Mutual inductance here:-https://brainly.com/question/7138348

#SPJ1

A 12kg object is moving up at a rate of 5m/s when it is 3m above the ground. How high in the air will it be when it stops moving

Answers

The air will be when it stops moving 180J.

The generally accepted boundary where space begins, which is also the point where the atmospheric pressure is assumed to be zero, is called the Kalman line. Simply put, gases move from areas of high pressure to areas of low pressure. And the greater the pressure difference, the faster air moves from high pressure to low pressure. This draft is the wind we experience.

As the air rises the surface pressure decreases. As the air rises, it expands and cools adiabatic cooling that is, it cools by changing volume rather than by increasing or decreasing heat. As a result, condensation/sedimentation occurs. Cold air sinks. The boundary between Earth and space is called the Kalman Line, an imaginary line 100 kilometers above Earth. This line is considered the boundary between space and the Earth's atmosphere.

Learn more about A Object Moving here:-https://brainly.com/question/19650625

#SPJ1

vector A points in the negative x direction and has a magnitude of 25 units. The vector B points in the positive y direction. Find the magnitude of B if A+B has a magnitude of 35 units

Answers

The magnitude of vector B is determined as 24.5 units.

What is resultant vector?

A resultant vector is defined as a single vector that produces the same effect as is produced by a number of vectors collectively.

The given parameters;

magnitude of vector A = 25 unitsresultant of vector A and B = 35 unitsmagnitude of vector B = ?

The magnitude of vector B is calculated as follows;

B² = R² - A²

where;

R is the resultant vector or sum of vector A and vector B

B = √(35² - 25²)

B = 24.5 units

Thus, the magnitude of vector B is determined as 24.5 units.

Learn more about resultant vector here: https://brainly.com/question/110151

#SPJ1

Which of the following statements is true
based upon your observations of the Earth
revolving around the Sun?
The hemisphere tilted away from the Sun
experiences winter; during this time the
pole in this hemisphere experiences 24
hours of sunshine.
The hemisphere tilted away from the Sun
experiences summer and the hemisphere
tilted towards the Sun experiences winter.
The hemisphere tilted towards the Sun
experiences summer; at this time the pole
in this hemisphere experiences 24 hours
of darkness.
The hemisphere tilted towards the Sun
experiences summer and the hemisphere
tilted away from the Sun experiences
winter.

Answers

The statement ' The hemisphere tilted towards the Sun experiences summer and the hemisphere tilted away from the Sun experiences winter.' is true.

The variation in seasons is due to the slight tilt of the earth on its axis towards the sun. This tilt is approximately equal to 29 and 1/2 degrees.

Due to this tilt of the earth, the north pole or the south pole of the northern or the southern hemisphere respectively never directly faces the sun.

But when the respective hemisphere is tilted towards the sun, it is as close to the sun as it is physically possible, and therefore that hemisphere experiences the summer season.

Whereas the other hemisphere which is tilted away from the sun is as far from it as possible and receives very little sunlight and hence experiences the winter season.

In the context of the above discussion, the statement ' The hemisphere tilted towards the Sun experiences summer and the hemisphere tilted away from the Sun experiences winter.' is true.

LEARN MORE ABOUT THE REVOLUTION OF EARTH HERE:

https://brainly.in/question/216966

#SPJ9

a glass block in air has a critical angle of 49degrees. what will happens to a ray of light coming through the the glass when it is incident at the angle at a angle of 50degrees

Answers

If a glass block in the air has a critical angle of 49° and an incident angle of 50°, any light rays entering to the glass will be bent away from the normal  and refraction would be happen.

The critical angle is the angle of incidence in a denser medium for which the angle of refraction in a rarer medium is 90°. which would be represented by (c). The bending of light ray through one medium to the another medium would be defined as refraction. There are two refraction laws, which are written as,The normal, refracted, and incident rays all lie on the same plane For any two media, the ratio of incident to refracting angle is a constant. This is also known as Snell's law .

[tex]\frac{sin_{i} }{sin_{r} } =n[/tex]

In above equation , n is constant, sin i and sin r are the angles of incident and refracted ray for two medium.

Therefore, from the above discussion ,as the incident angle is laser than the critical angle so that the ray of light would be refract away from the normal.

To know more about critical angle

https://brainly.com/question/13962887

#SPJ1

A rock is thrown off a cliff with a speed of 5 m/s downward. How far will it fall after 7 seconds have elapsed?

Answers

Answer: 30 meters

Explanation: 5 meters times 7 seconds

Daniel's physician has told him that he needs to spend less time in his office chair because sitting for so long is causing him to have back pain. What ergonomic solution could help him?
(A short explanation is ok if you can)


A) wearing a wrist brace


B) a standing desk


C) moving his monitor closer to his eyes


D) using a speakerphone more often

(please help ill give brainliest as soon as i can =) )

Answers

The possible ergonomic solution that could help Daniel reduce hos back pain caused by sitting long on his chair is a standing desk.

What is ergonomic solution?

Ergonomics is defined as the science of creating a working environment that suits the capabilities and limitations of the worker while providing the best working experience.

If Daniel's physician has told him that he needs to spend less time in his office chair because sitting for so long is causing him to have back pain. The possible ergonomic solution that could help him include the following.

Daniel can use a revolving seatDaniel can also use a standing desk; this will enable him stand and reduce his back pain which happens when he sits for long.

Thus, the possible ergonomic solution that could help Daniel reduce hos back pain caused by sitting long on his chair is a standing desk.

Learn more ergonomic solution here: https://brainly.com/question/14870262

#SPJ1

Answer: B. A standing desk

Explanation: I remember getting it right on my test.

The earth has a radius of 6.38×10^6 meters. Assume a perfectly smooth spherical earth. Calculate the minimum horizontal velocity required for an object to orbit the earth just above the surface

Answers

The minimum horizontal velocity required for an object to orbit the earth just above the surface is 5.04 x 10¹⁰ m/s.

What is orbital speed of earth?

The orbital speed of Earth or a natural satellite is the speed at which it orbits around the center of the system.

The minimum orbital speed of the Earth is calculated as follows;

V(min) = √GMR

where;

G is universal gravitation constant = 6.67 x 10⁻¹¹Nm²/kg²M is mass of earth = 5.97 x 10²⁴ kgR is the radius of the earth = 6.38 x 10⁶ m

Substitute the given parameters and solve for the minimum orbital speed of the earth.

V(min) = √(6.67 x 10⁻¹¹ x 5.97 x 10²⁴ x 6.38 x 10⁶)

V(min) = 5.04 x 10¹⁰ m/s

Thus, the minimum horizontal velocity required for an object to orbit the earth just above the surface is 5.04 x 10¹⁰ m/s.

Learn more about orbital speed here: https://brainly.com/question/22247460

#SPJ1

A car is traveling at a steady 86 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 7.1 m/s2 .
How far is the motorcycle from the car when it reaches this speed?

Answers

A scalar quantity, speed is defined as the size of the change in an object's location over time or the size of the change in an object's position per unit of time.

How far is the motorcycle from the car when it reaches this speed?

When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.

Acceleration is the rate at which an object's velocity with respect to time changes. They are vector quantities, accelerations. The direction of the net force acting on an object determines the direction of its acceleration.

Given,

Speed = 86 km/h

= 86000m/3600 s = 23.89m/s

v = a t

so,

23.89 = 7.1 * t

Therefore, t = 3.36 seconds

Distance car went = 23.89*3.36 = 80.38m

Distance motorcycle went = (23.89/2)* 3.36 = 40.14m

To know more about Speed, click on the link below:

https://brainly.com/question/13116524

#SPJ1

What was Bernard Kimani's speed in the Crim in FlintMI when he ran 13.1 mile in 1.00 hours?

Answers

The speed of Bernard Kimani in the Crim in FlintMI who ran 13.1 miles in 1 hour is 13.1 miles/hr.

What is Speed? Is it scalar or vector?

Speed is defined as the rate of change of distance travelled with respect to time. Mathematically -

s = Δd/Δt

It is a scalar quantity.

Given in the question is Bernard Kimani's from FlintMI who ran 13.1 miles in 1 hour. From this we can write-

Distance [d] = 13.1 miles

Time [t] = 1 hour

Bernard Kimani started running from d = 0 miles at time t = 0 hr.

The speed of Bernard Kimani will be -

s = Δd/Δt

s = (13.1 - 0)/(1 - 0)

s = 13.1 miles/hr

Therefore, the speed of Bernard Kimani in the Crim in FlintMI who ran 13.1 miles in 1 hour is 13.1 miles/hr.

To solve more questions on Kinematics, visit the link below-

https://brainly.com/question/28337635

#SPJ1

what happens to the sh
ape of water when we pour the same volume of water in different containers of different shape​

Answers

Answer:

It shapes into the form of the container because water is a liquid.

Explanation:

Use the energy equation, your answer from #5, and Planck’s constant (6.63E-34) to find the approximate energy of this photon:


4.8E-19 Joules

3.0E-19 Joules

3.0E-17 Joules

1.21 Gigawatts

Answers

The energy for the Photon with frequency 4.6 x 10 raise to power 14 Hertz is equal to 3 × 10 raised to power minus 19.

What is a Photon?

A photon is an elementary particle that is a quantum of the electromagnetic field and the force carrier for the electromagnetic force. Photons are massless, so they always move at the speed of light in vacuum, 299792458 m/s.

What is energy equation for radiation?

Energy equation is a derivative of the energy mass equation and is used to give energy of an electromagnetic or particle have frequency.

Given:

Frequency of the photon = 4.6×10¹⁴

Value of plank constant = 6.626×10⁻³⁴

Now from energy equation we have-

Energy of photon = plank constant × frequency of the photon

E = h × v

Where,

E is Energy of photon

h is plank constant

v is frequency of the photon

On substituting values in the energy equation we get,

E = 6.626 × 4.6×10⁻²⁰

E = 3 × 10⁻¹⁹

The energy for the Photon with frequency 4.6 x 10 raise to power 14 Hertz is equal to 3 × 10 raised to power minus 19.

Learn more about the energy of photon here:

https://brainly.com/question/11303938

#SPJ1

A ball is thrown horizontally from a cliff. Identify which of the following statements about the ball is/are correct.
I The vertical velocity of the ball increases as it falls.
II The vertical acceleration of the ball increases as it falls.
III The vertical force on the ball increases as it falls.
(1 point)

Answers

I. The statement that describes the motion of the ball is "The vertical velocity of the ball increases as it falls.

What is velocity of a projectile?

The velocity of a projectile is the rate of change of displacement of the projectile.

The velocity of a projectile can be vertical or horizontal.

Vertical velocity of a projectile

The vertical velocity of a projectile is affected by force of gravity. When an object is thrown upwards, the speed of the object decreases because the force of gravity acts in opposite direction to the motion of the object.

The speed of the object decreases and eventually becomes zero when the object reaches maximum height.

As the object begins to descend, its velocity increases because the object is moving in the same direction as the force of gravity, and the velocity of the object eventually becomes maximum before the object hits the ground.

Thus, the statement that describes the motion of the ball is "The vertical velocity of the ball increases as it falls.

Learn more about vertical velocity here: https://brainly.com/question/24949996

#SPJ1

The first one is obvious.

But if you get super picky technical, II and III are also true, because the ball gets closer to the center of the Earth as it falls.

What is the sum of the following vectors? Write your answer, what magnitude and direction the vector will have?

Answers

The magnitude and direction of the object's displacement is 7 m and west direction respectively.

What is displacement?

The displacement of an object is the change in the position of the object. Displacement is a vector quantity because it has both magnitude and direction.

To find the sum of the vectors, we find the displacement of the vectors.

Initial position of the vector = 10 m east

final position of the vector = 3 m west

displacement of the vector = final position - initial position

displacement of the vector = 3 m - 10 m

displacement of the vector = - 7 m

magnitude of the displacement = 7 m

direction of the displacement = west

Thus, the magnitude and direction of the object's displacement is 7 m and west direction respectively.

Learn more about displacement here: https://brainly.com/question/2109763

#SPJ1

A car travels due east with a speed of 50.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 60.0° with the vertical. Find the velocity of the rain with respect to the following reference frames. (Enter the magnitude of the velocity.)
(a) the car
m/s
(b) the Earth
m/s

Answers

The velocity of the rain with respect to car is 43.3 km/h and the velocity of the rain with respect to earth is 50 km/h.

What is relative velocity?

Relative velocity is the velocity of one object with respect to another using a frame of reference.

Velocity of the rain with respect to the car

V(rc) = 50 km/h x sin(60)

V(rc) = 43.3 km/h

Velocity of the rain with respect to the earth

V(re) = speed of the car =  50 km/h

Thus, the velocity of the rain with respect to car as frame of reference is 43.3 km/h and the velocity of the rain with respect to earth as the frame of reference is 50 km/h.

Learn more about relative velocity here: https://brainly.com/question/17228388

#SPJ1

A car is driving on a gravel road at a speed of 12 m/s. The car maintains this speed for 10 seconds. Going around a bend the car reduces speed to 5 m/s during the next 5 seconds. Over the last 15 seconds the car increases its speed with 2 m/s every second. Determine the maximum and minimum values for both axes.

Answers

The maximum distance covered by the car from point A to B will be 120 meters, and the minimum distance covered by the car will be 25 meters.

What is Speed?

Measuring is the most important scientific concept. Many different types of quantifiable quantities can be measured using base or physical fundamental units. One such quantifiable quantity is speed, which computes the proportion of a moving object's distance travelled to its travel time.

According to the question,

Point A and B are taken on X-axis and point B,C and D are taken on y-axis.

On going from point A to B,

Time taken= 10 seconds

Speed= 12 m/s

Distance covered will be : Speed × time

=12 × 10 sec

Distance= 120 meters

On going from Point B to C,

Time taken= 5 Seconds

Speed= 5 m/s

Distance covered by car will be : Speed × Time

=5 × 5 sec

Distance= 25 meters.

Now, On going from point C to D,

Time taken= 15 seconds

Speed= 2 m/s

Distance covered = speed × time

= 2 × 15 sec

Distance= 30 meters

Hence, the maximum distance covered by car is 120 meters when it goes from point A to B and the minimum distance covered by car is 25 meters when it goes from Point B to C.

To get more information about Speed :

https://brainly.com/question/28224010

#SPJ1

2. What are the benefits of repeated trials?

Answers

Science is the study of how the world functions through the systematic process of data collection known as the scientific method.

What are repeated trials?

Repeated trials are when a measurement is performed more than once at least three times, most often five but the more the better.

The likelihood that a measurement made once will yield an accurate result is substantially smaller. However, if you measure it multiple times, you may average the results to produce a value that is considerably more accurate.

In repeated trials, the same thing is measured repeatedly to increase the accuracy of your results. This is essential since data in the actual world frequently varies and nothing is flawless. Your average will get more closely to the genuine value as you perform more trials.

Therefore, Science is the study of how the world functions through the systematic process of data collection known as the scientific method.

To learn more about repeated trial, refer to the link:

https://brainly.com/question/14672056

#SPJ1

A projectile is launched at 68.0° above the horizontal and at a speed of 55 m/s. How long will it take the projectile to reach maximum height?

Answers

Answer:

5.2s

Explanation:

We care about the vertical component of the velocity, which, in our case, is [tex]v_y=55 sin 68\° m/s \approx 51 m/s[/tex]. The projectile is affected by gravity, which means its velocity will decrease by [tex]g= 9.81 m/s[/tex] each second. Remembering that at maximum height velocity is zero, we can write [tex]0=51-9.81 t \rightarrow t= \frac{51}{9.81}\approx 5.2s[/tex]

26. How are a hypothesis and a theory similar?
They are both attempts to explain natural phenomena
They are about equally true
A hypothesis and a theory cannot be revised.
Theories and hypotheses are produced by experts

Answers

Answer: The are both attempts to explain natural phenomena is what ima say.

Explanation: I hope this is right an di hope this helps.

I agree that the answer is A, as it is the only answer that makes sense

On the way to class, you walk east and then south such that your resultant displacement is 360 m in a direction 53 ° south of east. Your average velocity is 2.0 m/s in the same direction as the displacement. Calculate

(a) your walking time and (b) your average speed

Answers

(A) Your walking time during the journey is 180 seconds.

(B) Your average speed during the journey is 2.8 m/s.

What is the time of motion?

The time of motion is the time taken for an object to travel a given distance.

V(average) = displacement / time of motion

time of motion = displacement / average velocity

time of motion = (360 m) / (2 m/s)

time of motion = 180 seconds

Distance traveled in east direction

Dx = 360 m x cos(53)

Dx = 216.65 m

Distance traveled in south direction

Dy  = 360 m x sin(53)

Dy = 287.5 m

Total distance travelled = 216.65 m + 287.5 m = 504.15 m

What is average speed?

The average speed of an object is the ratio of total distance to total time of motion.

average speed = (504.15 m) / 180 s

average speed = 2.8 m/s

Learn more about average speed here: https://brainly.com/question/6504879

#SPJ1

1. Which of the determinants of health and wellness do you have least
control over?
O A.Environment
B. Health Care
OC. Social and Individual
D. Personal

Answers

A because yeaaaaa I need Mir words so

need help


what is a difference between a compound and a element

Answers

Answer is

Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.

Explanation:

I think that's the correct answer sorry if im wrong

Think of a pen name that you most likely would use if you are to become a writer. Write it down and give a brief explanation as to why you have chosen that particular pseudonym. Write your explanation on not less that three paragraph with 5 sentence each paragraph

Answers

A pen name is the name used by the writer instead of their real name when publishing. This name is called as pseudonym or a fake name. The author's real name is probably known to the publisher, but not to the public.

If I'll be the writer, I'll use Dark Shadow as my pen name.

Dark Shadow effectively acts as a living appendage that obeys his master's every command. It is sentient, capable of speech, and loyally protects its host regardless of its state. Also it is short and sweet name and can be pronounced easily.

Also thee is a drawback in seeking secrecy with the pen name. The Guardian article says, "If you try to keep your identity secret, you can't go to events or festivals; be pictured in newspapers, or be open about your possible success. And, if you become hugely successful, you'll have to come out eventually – as Madeleine Wickham, the author of the Sophie Kinsella books, did. "

To know more about Dark Shadow,

https://brainly.com/question/8047361

#SPJ1


What is the distance travelled by the motorbike while it is moving at
constant speed?
(a) 150m
(b) 50m
(c) 300m
(d) 750m

Any Expert Please Help me out

Answers

The distance travelled by the motorbike while it is moving at a constant speed is 150m

From the graph, we form the relationship between the speed s and the change in the time t for the journey, i.e. from t = 20sec to t = 30sec speed  s is constant = 15m/s

As the formulae states that

Speed = Distance / Time

Distance = Speed × change in time

⇒15 × ( 30 - 20 )

⇒15 × 10

⇒150m

Hence the Distance travelled by bike was 150m

Learn more about Speed Distance Time here

https://brainly.com/question/26046491

#SPJ9

You are driving through town at 12.0 m/s when suddenly a ball rolls out in front of you. You apply the brakes and begin decelerating at 3.5 m/s^2
(a) How far do you travel before stopping?
(b) When you have traveled only half the distance in part (a), is your speed 6.0 m/s, greater than 6.0 m/s, or less than 6.0 m/s?
(c) Find the speed of your car when you have traveled half the distance in part (a).

Answers

(a) The distance traveled by the driver before stopping is 20.57 m.

(b) When you have traveled only half the distance in part (a), your speed is greater than 6.0 m/s.

(c) The speed of your car when you have traveled half the distance in part (a) is 8.49 m/s.

Distance traveled by the driver before stopping

The distance traveled by the driver before stopping is calculated as follows;

v² = u² + 2as

when the car stops, the final velocity, v = 0

0 = u² + 2as

0 = 12² + 2(-3.5)s

0 = 144 - 7s

7s = 144

s = 144/7

s = 20.57 m

when you travel half of 20.57 m

v² = (12²) - 2(3.5)(0.5 x 20.57)

v² = 72.005

v = √72.005

v = 8.49 m/s

Thus, when you have traveled only half the distance in part (a), your speed is greater than 6.0 m/s.

Learn more about Distance traveled by car here: https://brainly.com/question/28036565

#SPJ1

Sanjay is a veterinary scientist who works for a pharmaceutical company that manufactures cures for many diseases that affect animals. Recently, his company came across a substance that they believe could be used to fight one of the biggest threats to the American food system. The problem is that this particular disease can only be studied on Plum Island, in New York. Sanjay is on a helicopter meant to take him to Plum Island to begin his research with live samples of the disease. Which disease is Sanjay’s drug MOST likely attempting to heal?

A. mad cow disease
B. toxoplasmosis
C. foot and mouth disease
D. swine flu

Answers

Sanjay is going to Plum island to begin his research with live samples of the disease. So, Sanjay's drug is most likely an attempt to heal foot and mouth disease. Hence, option C is correct.

What is Foot and Mouth disease?

All animals with cloven hooves, including cattle, sheep, goats, came lids, deer, and pigs, are susceptible to the deadly and contagious foot-and-mouth disease (FMD). Animals with divided hooves are known as cloven-hoofed animals. Zebras and horses are unaffected.

Humans, not animals, are affected by the hand, foot, and mouth disease (HFMD), which is common in young children. FMD is a different illness. People cannot contract FMD by eating infected beef.

The FMD virus is present in all live animals, meat, dairy products, soil, bones, untreated skins, automobiles, and equipment used with these animals. It can also persist in foods that have been chilled, frozen, or freeze-dried, as well as on people's clothing and shoes.

To get more information about Foot and mouth Disease :

https://brainly.com/question/27963080

#SPJ1

What do we mean by internal and external structure of a substance in solid state?

Answers

The external structure of a solid  refers to the overall structure of the solid due to the arrangement of its particles..

The internal structure of a solid is the the arrangement of unit particles in the internal space of the solid.

What is a solid?

A solid is a substance which has a definite shape and volume.

Solids are one of the three states of matter.

The particles in a solid are arrange in regular repeating patterns due to the strong intermolecular forces of attraction between the particles in the solid.

The external structure of a solid refers to the overall structure of the solid due to the arrangement of its particles.

The external structure of a solid may be a crystal or amorphous in shape.

The internal structure of a solid is the the arrangement of unit particles in the internal space of the solid.

Learn more about structure of a solid at: https://brainly.com/question/26176453

#SPJ1

velocity equations solve:
15, km over second
find the m/s
and find the km/h

Answers

The 15 km/s velocity is equivalent to 15000 m/s and 54000 km/h.

Velocity is a vector quantity. It consist both a direction and a magnitude. The magnitude of velocity is called speed. Its S.I. unit is a meter/second. It also has other units like Km/h and Km/s. Its dimensional formula is [[tex]LT^{-1}[/tex]].

Given in the question

Velocity is 15 Km over a second

We can infer from the given value that the body moves 15 km per second.

1 Km = 1000 m

1 Km × 15  = 15 × 1000 m

So 15 Km = 15000 m

Hence we can say that the body travels 15000 meters in a second.

As a result, its velocity in m/s is 15000 m/s.

Now

15 kilometers can be covered in 1 second.

Distance traveled in 3600 seconds = 3600 × 15 Km

So the total distance traveled in 3600 seconds is 54000 kilometers.

Also 3600 seconds = 1 hour

In other words, The body travels 54000km in 1 hour, hence its velocity is 54000 km/h.

Therefore, the 15 km/h velocity is equal to 15000 m/s and 54000 km/h.

LEARN MORE ABOUT VELOCITY HERE:

https://brainly.com/question/6504879

#SPJ9

Football player Joe is running toward the opponent's goal line with the football, and slows down as he encounters the other team. If the opponent's goal line is the reference point, which of the following best describes his motion?

Question 4 options:

Negative Velocity, Negative Acceleration


Negative Velocity, Positive Acceleration


Positive Velocity, Negative Acceleration


Positive Velocity, Positive Acceleration

Answers

Since Joe is running towards the goal line and slowing down, the option that describes this motion is negative velocity, negative acceleration.

What is negative velocity?

A negative velocity occurs when an object moves in the negative direction.

Example of negative velocity;

If a car is moving away from you (reference point) then the velocity is positive.

If a car is coming towards you (reference point) then the same vector reverses direction and hence the velocity is negative.

What is negative acceleration?

If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion. Thus, the acceleration of the object will be negative.

Thus, since Joe is running towards the goal line and slowing down, the option that describes this motion is negative velocity, negative acceleration.

Learn more about negative velocity here: brainly.com/question/14360163

#SPJ1

An object traveling at a constant speed exhibits which of the following:

Net force of 0N.

Acceleration is 0m/s/s

Speed of 0m/s.

None of the above

Answers

When an object is traveling at a constant speed, the acceleration is 0 m/s².

What is constant speed?

If an object covers an equal amount of distance in equal interval of time, then the body is said to be moving at a constant speed.

F - ff = ma

where;

F is the applied forcem is mass of the objecta is acceleration of the object

During constant speed, acceleration = 0

Thus, when an object is traveling at a constant speed, the acceleration is 0 m/s².

Learn more about constant speed here: https://brainly.com/question/2681210

#SPJ1

Other Questions
you have c pieces of candy to share among 6 friends what epression shows the nnmber of the candies each freind will get Given that a mile is 1.6093km, how many kilometers do you travel if you run for a total of 43.5 minutes, 21.2 minutes of which was at the rate of 6.5 mph while the remaining 22.3 minutes was run at 7.8 mph? Beau lifts weights at his local gym on a regular basis. When he started working out, he weighed 127 pounds. Beau kept track of his weight and found that he gained 2 pounds every month. If Beaus goal is to weigh at least 155 pounds after working out for m months in a row, which inequality best represents this situation? Gillian earns $7.50 an hour babysitting on the weekends. Last week she babysat for 2.2 hours on Saturday and 3.5 hours on Sunday. How much did Gillian earn?Group of answer choices Nicole and Daniel are splitting a pizza. Nicole eats 1/4 of the pizza and Daniel eats 2/3 of it. How much pizza is left? Write an equation to represent this situation. 1. What is the name of the current hurricane hitting the U.S?2. Where is it now?3. What is the max. wind speed? How high is the storm surge?4. What types of songs became the origin of music forms like blues and R&B?5. What were the songs about?6. How were they disguised?7. How did some white performers present early black music forms?Textbook (pgs. 171-175)8. What were American colonists loyal to Britain called?9. Where did many of them flee to?10. What is NAFTA?11. List one of its positives and one of its negatives12. List 10 states and their capitals A pair of parallel lines is cut by a transversal.If mA = (5x 4) and mB = (8x 28), what is the value of x?A) 8B) 9.4C) 16.3D) 36 A Blue Line train and a Yellow Line train just left the station at the same time. Blue Line trains run every 10 minutes, and Yellow Line trains run every 12 minutes. How long will it be until a Blue Line train and a Yellow Line train are at the station at the same time? 4. Calculate the length of each line segment.Round answers to the nearest tenth of aunit, when necessary.a) ABb) CDc) EF This law demonstrates that at one time the federal government was willing to - (18B) Question 11 options:suspend habeas corpusforce people into internment campssuspend freedom of speech Let f(x)=2 x+5 and g(x)=x-3 x+2 . Perform each function operation, and then find the domain. 5 f(x) / g(x) difficult is to what find the number of stamps measured 3cm 4cm needed to fill the square card with a side of 12cm The larger of two numbers is one more than four times the smaller number. If the sum of the numbers is 106, find the numbers. a32,56 b32,74 c21,85 d52,54 What is an equation of the line that passes through the points (-5, -5) and(5, -7)? 5.0 ml of 0.10 m solution of naoh is added to 30. ml of buffer solution of acetic acid (0.093m) and sodium acetate (0.12 m). what is the ph of new solution? ka Ashley is going on a trip to London. She has saved $130.00 in spending money. When she arrives in England, she goes to a bank to change her money into pounds. She is told that the exchange rate is 1 British pound = 1.43 American dollars. The bank charges a fee of 4 pounds to change the money from dollars to pounds. How much money, in British pounds, will Ashley have if she changes all of her dollars to pounds? WILL GIVE BRAINLIST TO BEST ANSWER Arabella sells cars at a local dealership and gets paided by commission. she has already made $750 and will continue to earn $200 per car that's she sells. If her goal is to make $2750 by the end of the month, write + solve the equation below that models this months goal. Which of the following groups of words are listed in alphabetical order?A) tank, target, tap, tangerineB) peak, pearl, peanut, peasantC) light, lock, locust, lottery Which of the Seven Deadly Sins is the most prevalent in the play the crucible. Which of the Sins represents the sins the most.(evidence from text)