Which of the following settings describe a displacement vs time graph that looks like this

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

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.

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.

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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.

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

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.

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.

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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.

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.

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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.

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.

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Answer:

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

Explanation:

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

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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.

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Answer: 30 meters

Explanation: 5 meters times 7 seconds

The final density of air coming to a uniform state after the membrane is broken is 1.23 kg / m³

ρ = m / V

ρ = Density

m = Mass

V = Volume

[tex]m_{A}[/tex] = 1 kg

[tex]V_{A}[/tex] = 0.6 m³

[tex]V_{B}[/tex] = 0.8 m³

ρ[tex]_{B}[/tex] = 0.9 kg / m³

Total mass, m = [tex]m_{A}[/tex] + [tex]m_{B}[/tex]

m = [tex]m_{A}[/tex] + ρ[tex]_{B}[/tex] [tex]V_{B}[/tex]

m = 1 + ( 0.8 * 0.9 )

m = 1.72 kg

Total volume, V = [tex]V_{A}[/tex] + [tex]V_{B}[/tex]

V = 0.6 + 0.8

V = 1.4 m³

Final density, ρ = m / V

ρ = 1.72 / 1.4

ρ = 1.23 kg / m³

Therefore, the final density of air coming to a uniform state after the membrane is broken is 1.23 kg / m³

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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.

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The magnitude of vector B is determined as 24.5 units.

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;

The magnitude of vector B is calculated as follows;

B² = R² - A²

where;

B = √(35² - 25²)

B = 24.5 units

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

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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.

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.

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

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

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

Dx = 360 m x cos(53)

Dx = 216.65 m

Dy  = 360 m x sin(53)

Dy = 287.5 m

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

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

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

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;

During constant speed, acceleration = 0

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

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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. "

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(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.

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

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.

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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.

[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.

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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.

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.

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.

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

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;

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.

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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.

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.

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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]

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.

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

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.

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

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Answer: B. A standing desk

Explanation: I remember getting it right on my test.

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

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

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.

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

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.

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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

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

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.

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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