Newton's second law of motion states that "the acceleration of an object is equal to the force on an object divided by the mass of the object."
Newton's second law of motion is also called the law of acceleration as it tells us about the acceleration of a moving object under the influence of an unbalanced force or net force not equal to zero.
According to the law, the acceleration of an object is directly proportional to the force on the object and inversely proportional to the mass of the object.
Acceleration a ∝ Force F ....1
Acceleration a ∝ 1/Mass m ....2
From 1 and 2 Acceleration a = [tex]\frac{Force}{Mass}[/tex]
Therefore, Newton's second law of motion states that "the acceleration of an object is equal to the force on an object divided by the mass of the object."
LEARN MORE ABOUT LAWS OF MOTIONS HERE:
https://brainly.com/question/26083484
#SPJ9
2. A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance? Show all your work, including the equation used, given and unknown quantities, and any algebra required. Make sure your answer has the correct number of significant figures.
The time taken for the car to cover the distance of 125 m is 5 seconds
How to determine the timeFrom the question given above, the following data were obtained:
Initial velocity (u) = 10 m/sFinal velocity (v) = 40 m/sDistance (s) = 125 mTime (t) =?The time taken for the car to cover the 125 m distance can be obtained as illustrated below:
s = (u + v)t / 2
125 = [(10 + 40) × t] / 2
125 = (50 × t) / 2
Cross multiply
50 × t = 125 × 2
50 × t = 250
Divide both sides by 50
t = 250 / 50
t = 5 s
Thus, the time taken by the car to cover the 125 m distance is 5 seconds
Learn more about velocity:
https://brainly.com/question/3411682
#SPJ1
Advantages and disadvantages of reflecting telescope
Answer:
advantages is you can look at the stars disadvantage is don't look at the sun you will go blind
1. An object falls from rest on a high tower and takes 5.0 s to hit the ground. Calculate the object’s position from the top of the tower at 1.0 s intervals. Make a position-time graph for the object’s motion. In your response, show what you are given, the equation that you used, any algebra required, a table of data, and your graph.
g=9.8 m /s^2
Create a graph with the x-axis indicating time and the y-axis showing distance (displacement from the top) (label axes and give units for each).
A line with an upward slope that progressively becomes steeper as it continues will be the one that fits the data the best. Avoid using straight lines to connect the graph's points.
This is further explained below.
What is the object’s position from the top of the tower at 1.0 s intervals?Generally, the equation for distance is mathematically given as
d = ut + ½.at²
Therefore
For 1.0s
d = 0.5 x 9.80 x (1²)
d= 4.90 m
For 2.0s
d' = 0.5 x 9.80 x (2²)
d'= 19.60 m
For 3.0s, 4.0s, 5.0s Respectively
d'' = 44.10m
d''' = 78.40 m
d'''' = 122.50m
In conclusion, Draw a graph with the y-axis representing distance (displacement from the top) and the x-axis representing time (label axes and give units for each).
The line that provides the greatest fit will be an upwardly sloping line that gradually becomes steeper as it goes on. Do not connect the graph points with lines that are straight.
Read more about the time
https://brainly.com/question/28050940
#SPJ1
What did gravity create when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system?.
Solar nebula is created when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system.
The explosion of flattened disc created waves in space that compressed the cloud of gas and dust. The cloud is all gravitationally bounded together.
As the cloud continued to fall inward, the center eventually became so hot that it became a star, the Sun, and blew away most of the new solar system's gas and dust with a powerful stellar wind.
This squeeze caused the cloud to begin collapsing as gravity pulled the gas and dust together to form the solar nebula.
To know more about Solar nebula,
https://brainly.com/question/17642997
#SPJ4
How many seconds would it take a boat to accelerate from 13 m/s to 26 m/s over a distance of 1.25 km?
Time taken by the boat to accelerate is 1 min 4 s.
How to calculate the time taken?V[tex]f_{2}[/tex] - V[tex]o_{2}[/tex] = 2 a X ,
a = Vf2 - Vo2 / 2 X
= (26 m/s)2 -(13m/s)2 / 2(1250m)
= 507 m2/s2 / 2.5 m = 0.203 m/s2
Solve for time using the equation with acceleration known.
Vf = at + Vo ,
t = Vf - Vo / a = 26m/s -13m/s/ 0.203 m/s2
= 64 s
= 1 min 4 s
To learn more about time, refer
https://brainly.com/question/25800303
#SPJ4
Alcohol thermometer cannot measure the temperature of boiling water, why?
Answer:
Because it has a limit of up to 80°C
Explanation:
8. How is 2D acceleration different from centripetal accele
a. It always acts in the same direction.
It is calculated with a different equation.
C.
It has x and y components but the acceleration is the same for each.
None of the above.
of 1D motion?
Answer:8. How is 2D acceleration different from centripetal accele
a. It always acts in the same direction.
It is calculated with a different equation.
C.
It has x and y components but the acceleration is the same for each.
None of the above.
of 1D motion?
Explanation:
you are given a block with a known volume of 15.0 cm3. use the following scenarios to determine if the data is accurate, precise, both, or neither. you measure the block four times and find that its volume is 14.6 cm3, 14.7 cm3, 14.7 cm3, and 14.6 cm3. your measurements are: you are given a block with a known volume of 15.0 cm3. use the following scenarios to determine if the data is accurate, precise, both, or neither. you measure the block four times and find that its volume is 14.6 cm3, 14.7 cm3, 14.7 cm3, and 14.6 cm3. your measurements are: precise, not accurate accurate, not precise both precise and accurate neither precise nor accurate
The measurements are accurate but not precise.
Measurement is the basis for all scientific and technological developments. The measurement of any quantity is not perfect and there are always some uncertainties that cause errors in the measurements. While measuring anything we define the measurements in terms of precision and accuracy.
The accuracy of a measurement is a measure of how close the calculated value is to the true value. While precision tells to what resolution or limit the quantity is measured. For example, suppose the true value of a length is 10.578 cm. In the first case, the value comes out to be 10.4 cm. In the second case, the value comes out to be 10.378 cm. In the above example, the first value is accurate because it is close to the true value but the second value is precise because it contains more digits after the decimal.
Similarly, in the above case, a block with a known value of the volume of 15 cm^3 and the measurements are 14.6, 14.7, 14.7, 14.6 cm^3. As the values are close to the true value but they contain less number of digits after decimals, these values are accurate but not precise.
To know more about "precision and accuracy", refer to the link given below:
brainly.com/question/18974348?referrer=searchResults
#SPJ4
URGENT! PLEASE HELP
(I will give brainliest!)
please detail it
Essay: list two major type of waves: contrast their structure and the motion of particles in the transmitting substance
Answer:
While waves that travel within the depths of the ocean are longitudinal waves, the waves that travel along the surface of the oceans are referred to as surface waves. A surface wave is a wave in which particles of the medium undergo a circular motion.
Explanation:
Are you satisfied or I should continue in the comments.
the deepest part in the ocean is the challenger deep within the mariana trench, which has a maximum depth of around 11,000 m. this question will look to estimate the pressure at this depth in the ocean. (a) (2 points) assuming that the salt water in the ocean has a const
The pressure is 107417976.4 N[tex]m^{-2}[/tex].
What is Pressure?
The pressure of water at a given height/ depth can be determined by:
Pressure = σhg
Where: σ is the density of water, h is the height/ depth, and g is the gravitational force.
Given that; h = 10994 m, but σ = 997 kg/[tex]m^{3}[/tex] and g = 9.8 m/[tex]s^{2}[/tex]
Thus, the pressure of water at the deepest part of the ocean will be:
Pressure = 997 x 10994 x 9.8
= 997 x 107741.2
= 107417976.4
Pressure = 107 420 KN [tex]m^{-2}[/tex]
In order to measure an object's surface tension, a force must be applied perpendicularly to the object's surface over a given area. Gauge pressure is the amount of pressure in relation to the surrounding pressure. Pressure is expressed using a number of different units.
In relation to an object's surface, pressure is the amount of force per unit area that is applied perpendicularly. P, or "p," serves as its symbol.
To learn more about Pressure from the given link:
brainly.com/question/12971272
#SPJ4
ricardo and jane are standing under a tree in the middle of a pasture. an argument ensues, and they walk away in different directions. ricardo walks 28.0 m in a direction 60.0∘ west of north. jane walks 13.0 m in a direction 30.0∘ south of west. they then stop and turn to face each other. part a what is the distance between them?
The distance between Ricardo and Jane :
a) 24.33 m of distance.
b) 34.55° east of the south.
Evaluating the equation given :
Now that we all know what we need to do in this question, let's head for each part of the problem.
a) Distance between Ricardo and Jane
In this case, we'd like to analyze the given data:
Ricardo (which we'll call R) is 28 m from the starting point at 60° west of north, and Jane (J) is 13 m at 30° south of west. therefore the distance between them, are going to be the point where they both stop and face each other.
Let's call the space between them as "D", to urge the distance of D, consistent with the picture will be:
D = J - R (1)
However, as they're facing in different angles and directions, we cannot do the difference of their values distance a bit like that. so as to do that, we'd like to calculate the components in the "x" and "y" axis of each vector. therein way, we will get the components of x and y of the Distance D, and then, the full distance between them will be:
D = √Dx² + Dy² (2)
So, let's get the components of x and y of R and J.
For Ricardo (R):
Rx = R sin60° = 28 sin60°
= -24.25 m
Ry = R cos60° = 28 cos60°
= 14 m
The sign "-" it's because R it's on the second quadrant, therefore in x, we'll need to add the negative.
For Jane (J):
Jx = J cos30° = 13 cos30°
= -10.39 m
Jy = J sin30° = 13 sin30°
= -6.5 m
Again, the negative is added because J is on the third quadrant.
Now that we've the components, let's calculate vector D using expression (1):
Dx = -10.39 - (-24.25) = 13.86 m
Dy = -6.5 - 14 = -20.5 m
Now, using expression (2) we will finally know the distance between Jane And Ricardo:
D = √(-20)² + (13.86)²
D = 24.33 m
This is the distance between Jane and Ricardo.
b) Direction of Ricardo walking to Jane
In this case, we have already got the components of x and y of the distance between them, so, to understand the direction:
Tanα = Dy/Dx
α = tan⁻¹ (Dy/Dx)
Replacing the values we have:
α = tan⁻¹ (-20/13.86)
α = 55.45°
Which should south of east or:
β = 90 - 55.45
β = 34.55°
Ricardo should walk 34.55° east of south
The question is incomplete. the full exercise is the following:
"Ricardo and Jane are standing under a tree within the middle of a pasture. An argument ensues, and that they walk away in different directions. Ricardo walks 28.0 m during a direction 60.0° west of north. Jane walks 12.0 m during a direction 30.0° south of west. They then stop and switch to face each other.
(a) what's the distance between them?
(b) In what direction should Ricardo walk to travel directly toward Jane?"
Learn more about directions at different angles :
brainly.com/question/2598206
#SPJ4
suppose an am talk radio station broadcasts radio waves with a frequency of 640 khz. calculate the wavelength of these radio waves. round your answer to significant digits.
Answer:
323 m.
Explanation:
The frequency is 640 kHz.
(wavelength) = =
We will now change 640KHz to Hz. This is attainable as follows:
1 KHz = 1000 Hz
Therefore,
640 KHz is equal to 640 KHz 1000 Hz / 1 KHz.
640 kHz = 64×10⁴ Hz
As a result, 640KHz is equal to 64025 Hz.
The following equation connects a wave's wavelength () and frequency (f):
Wavelength x Frequency = Velocity
v = λf
The radio wave wavelength can be calculated using the formula above as follows:
Frequency (f) equals 64 to 104 Hz
The electromagnetic wave's (v) speed is 3 x 108 m/s.
(wavelength) = =
v = λf
3×10⁸ = λ × 64×10⁴
By 64025, divide both sides.
λ = 3×10⁸ / 64×10⁴
λ = 487m
Consequently, the radio wave's wavelength is 487 m.
To know more about wavelength click on this length:
brainly.com/question/4112024
#SPJ4
The same runner then moves from position 12m to position 20m. what is the distance traveled during this segment of the motion?
Distance = Displacement = 8 meters.
While a person's displacement is equal to the shortest path taken, their total distance travelled is equal to their whole trip.
What is displacement?The displacement in geometry and mechanics is the smallest separation between the beginning and end positions of a point P.It determines the length and direction of the net motion, also known as the total motion, along a straight line from the point trajectory's starting point to its ending point.A displacement may be discovered by using the translation that joins the starting point and ending point.The overall distance travelled by a person is equal to their entire trip, but their displacement is equal to the shortest path they took.To know more about displacement ,refer to the following link:
https://brainly.com/question/321442
#SPJ4
How are independent and dependent variable related? Give an example.
You have found that tides on earth are determined primarily by the position of the moon, with the sun playing only a secondary role. Why does the moon play a greater role in causing tides than the sun?.
You have found that tides on earth are determined primarily by the position of the moon, with the sun playing only a secondary role. The moon play a greater role in causing tides than the sun, because of the Sun's higher gravitational pull on Earth, the planet revolves around it. Tides, on the other hand, are brought on by variations in the gravitational pull on Earth.
Despite the fact that the gravitational pull between Earth and the Moon is weaker than the attraction between Earth and the Sun, the Moon's considerably closer proximity to Earth causes this attraction to fluctuate more widely throughout the planet.
Because of this, the Sun only has a little secondary effect on tides, which are predominantly caused by the Moon.
Stars are celestial bodies that generate their own energy through the fusing of gases. They resemble bright orbs that burn gas and produce energy. Our solar system's star, the Sun, generates energy through the fusion reaction in which helium transforms into hydrogen.
Learn more about sun:
https://brainly.com/question/15837114
#SPJ4
The complete question is ''You have found that tides on Earth are determined primarily by the position of the Moon, with the Sun playing only a secondary role. Why does the Moon play a greater role in causing tides than the Sun?- Because the gravitational attraction between Earth and the Moon varies more across Earth than does the gravitational attraction between Earth and the Sun
Briefly explain how can you use the plot made in step 10 to determine the gravitational acceleration?
Answer:
The Force
Explanation:
Gravitational Acceleration is the Acceleration of a free fall of a object.
you are exploring a newly discovered planet. the radius of the planet is 7.40 × 107 m. you suspend a lead weight from the lower end of a light string that is 4.00 m long and has mass 0.0280 kg. you measure that it takes 0.0605 s for a transverse pulse to travel from the lower end to the upper end of the string. on earth, for the same string and lead weight, it takes 0.0320 s for a transverse pulse to travel the length of the string. the weight of the string is small enough that its effect on the tension in the string can be neglected.
For the given values, Other planet's mass is 2.81 x 10²⁶ m.
What does a planet's mass indicate?Planetary mass is a measurement of an object's mass in astronomy that resembles a planet. Planets in the Solar System are often measured using the astronomical system of units, where the Sun's mass, solar mass (M), serves as the unit of mass.
Given,
Other planet's radius (R) equals 7.40 x 10(7) m
M=0.028kg; string mass
L=4m for the string's length
Time on other planet (Tp) equals 0.0605 seconds
Earth time (Te) equals 0.0320 seconds.
Let's start by locating lead on Earth.
The formula for linear mass density is;
μ = M/L = 0.028/4 = 0.007 Kg/m
The equation for the wave's speed in this instance is Ve = L/t = 4/0.032 = 125 m/s.
The formula yields the spring's (Fe) tension;
Fe=(Ve)2=0.007 x 125 = 0.875 N
Newton's second law of motion, when applied to this earth lead, yields the following results:
Fy= Fe-Wl = 0
Fe = W as a result of Fe - W(l) = 0. (l)
Weight(W) equals Mg, as we know.
So, Fe = M(l)g.
Where g is the acceleration caused by gravity on earth, which is 9.81, and M(l) is the mass of the lead.
M(l) = Fe/g = 0.875/9.81 = 0.089kg as a result.
Let's compute the lead on the second planet using the same technique;
The characteristic of a substance that doesn't change is its linear density:
μ = 0.007 Kg/m
The equation for the wave's speed in this instance is Vp = L/t = 4/0.0605 = 66.11 m/s.
The formula yields the spring's (Fp) tension;
Fp = (Vp)2, which is 0.007 x 66.11² = 30.59 N.
Newton's second law of motion, when applied to this earth lead, yields the following results:
Fy=Fp-Wl = 0
Fe - W(l) = 0 and Fp = W as a result (l)
Weight(W) equals Mg, as we know (p)
Therefore, Fp = M(l)g (p)
where g(p) is the acceleration caused by the gravity of this other planet and M(l) is the mass of lead.
gp = Fp/M(l) = 30.59/0.089 = 343.70 m/s2 as a result.
According to the gravity equation, the planet's acceleration is given by the formula g = (GM)/r2.
M being the topic, we have;
(gr²)/G = M
G, with a value of 6.6742 x 10(-11) Nm2/kg2, is the gravitational constant.
Planet mass is M.
Planetary radius is r.
Thus;
M = [343.70 x (7.4 x 10^(7))²] / 6.6742 x 10^(-11)
Mass = 2.81 x 10^(26)m
Complete Question -You are exploring a newly discovered planet. The radius of the planet is 7.20 × 107 m. You suspend a lead weight from the lower end of a light string that is 4.00 m long and has mass 0.0280 kg. You measure that it takes 0.0685 s for a transverse pulse to travel from the lower end to the upper end of the string. On earth, for the same string and lead weight, it takes 0.0370 s for a transverse pulse to travel the length of the string. The weight of the string is small enough that its effect on the tension in the string can be neglected.
Part A
Assuming that the mass of the planet is distributed with spherical symmetry, what is its mass?
Express your answer with the appropriate units.
To learn more about mass of the planets from given link
https://brainly.com/question/15071388
#SPJ4
CALCALATE the temperature change when 1000j of heat is supplied to 100g of water
Answer:
2.39 °C
Explanation:
Specific heat of water = 4187 j / kg °C (You eaither have to be given this, or know this or look it up)
100 g of water = .1 kg of water
1000 j / (.1 kg * °C) = 4187 j / (kg °C)
solve for C = 2.39°C
When used at a wavelength of 1 micron, a telescope can resolve angles as small as 0. 1 seconds of arc. How small an angle could the telescope resolve when used at a wavelength of 5 microns?
Answer:
θ = 1.22 λ / D
Above is the formula calculated for a circular aperature
If the wavelength is multiplied by 5 then the angle of resolution would be 5 times as great or 5 * θ
5 * θ = .5 seconds
What is the mass of a cannonball if a force of 2,500 n gives the cannonball an acceleration of 200 m/s2? 12.5 kg 12.5 kg 15.0 kg 15.0 kg 20 kg 20 kg 25 kg
The mass of the cannonball is 12.5 kg.
Force on cannonball = 2500N
Acceleration on cannonball= 200 m/s²
From, Newton's second law of motion
Force = Mass × Acceleration
Mass = [tex]\frac{Force}{Acceleration}[/tex] .......(i)
Now, putting the values in equation (i),
Mass = [tex]\frac{2500}{200}[/tex]
Mass = 12.5 kg
Thus, the mass of the cannonball is 12.5 kg.
Read more about Newton's Second Law:
https://brainly.com/question/26296055
#SPJ4
A solid cylinder (radius = 0.150 m, height = 0.120 m) has a mass of 6.70 kg. This cylinder is floating in water. Then oil ( = 725 kg/m3) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the oil?
Answer:
0.0917 m
Explanation:
Fnet = 0
Fb1 + Fb2 - mg = 0
ρ1V1g + ρ2V2g - mg = 0
(725)V1(9.8) + (1000)V2(9.8) = (6.70)(9.8)
7105V1 + 9800V2 = 65.7
Volume of cylinder = pi * r^2 * h = 8.48 * 10^-3 m^3
let x = percentage of volume in oil
V1 = (8.48 * 10^-3)x
V2 = (8.48 * 10^-3)(1-x)
7105(8.48 * 10^-3)x + 9800(8.48 * 10^-3)(1-x) = 65.7
x = 0.764
Height in oil = Total height * x = (0.120 m)(0.764)
Height in oil = 0.0917 m
two particles, one with charge −3.77×10−6 c and the other with charge 6.91×10−6 c, are 0.0584 m apart. what is the magnitude of the force that one par
The magnitude of the force that one particle exerts on the other particle is 68.6 N.
The charge of the first particle is q1.
[tex]q _{1}= - 3.77 \times 10 ^{ - 6} \: C[/tex]
The charge on the second particle is q2.
[tex]q _{2}= 6.91\times 10 ^{ - 6} \: C[/tex]
The distance between the two charged particles is d.
d = 0.0584
The magnitude of the force that one particle exerts on another particle is,
[tex]F= k \frac{q _{1} q _{2}}{(d) ^{2} }[/tex]
[tex]F=9 \times 10 ^{9} \times \frac{ - 3.77 \times 10 ^{ - 6} \times 6.91 \times ^{ - 6} }{(0.0584) ^{2} } [/tex]
F = 68.6 Newton
Therefore, the magnitude of the force that one particle exerts on another particle is 68.6 N.
To know more about force, refer to the below link:
https://brainly.com/question/13191643
#SPJ4
For this assignment, consider the fact that our country spends millions of dollars each year to explore space and to learn about the structure and composition of the universe. Why do you think learning about space is a priority for our country and why are we willing to spend so much money on it? Create a discussion post about your thoughts on space exploration, including why or why not you think space exploration should be a national priority and what you think scientists hope to learn by continuing to explore the makeup of the universe.
I think that our nation's leaders prioritize space education because they see the potential benefits for us in the future.
The phrase "space exploration" is used to describe any activities connected to the study of space. Space exploration has generally been one of the subjects that mankind have been interested in. However, fresh discoveries have been made in recent years as a result of technological advancements.The majority of people on Earth are interested in space exploration because we think we fully understand the Earth's space and we want to go beyond what is possible. But the question is: Should space exploration be a top priority for the country?Space exploration shouldn't, in my opinion, be a top priority for our government since the millions of money spent on it may be better spent on enhancing the lives of many people here on Earth and abroad.I don't mean to imply that space exploration is a topic that doesn't merit consideration and investigation. However, I do think that it shouldn't be a top priority. Instead of looking for life on other planets and potentially habitable spaces when we already have our place in the universe, we should consider that our reality is on Earth and use those resources to protect it from the environmental damage we have caused it.To know more about space exploration visit : https://brainly.com/question/1979086
#SPJ1
you need to determine the density of a ceramic statue. if you suspend it from a spring scale, the scale reads 28.4 n. if you then lower the statue into a tub of water so that it is completely submerged, the scale reads 17.0 n.
The density of ceramic statue was found to be 2500kg/m³
First we calculate amount of water displayed
= 28.4 - 17.0 = 11.4N of water displaced.
Now, we calculate the volume of water displayed ,
Volume=water displaced /gravity
=11.4/9.8
Volume = 1.16kg of water.
we know that, density of water = 1000kg/m³
so, density of 1.16 kg= 1.16 x10^-3 m^3
mass of ceramic statue= 28.4 N/9.81 kg = 2.90 kg.
At last we calculate, density of ceramic statue by,
density of ceramic statue = ceramic mass/ density of water
= 2.90/(1.16 x 10^3) = 2500kg/m³
Thus, the density of ceramic statue is found to be 25kg/m³.
The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition. Density Formula = m/V, where is the density, m is the object’s mass, and V is its volume. Density Symbol: D
If you are mixing a immiscible liquid in water, then if the density of the liquid sample is less than density of water then it it’s floats on upper surface .
To learn more about density, refer this link.
https://brainly.com/question/1354972
#SPJ4
A car travels up a hill at a constant speed of 33 km/h and returns down the hill at a constant speed of 72 km/h. calculate the average speed for the round trip.
The average speed for the round trip is 90.51 km/hr when a car travels up a hill at a constant speed of 33 km/h and returns down the hill at a constant speed of 72 km/h.
To find the average speed for the round trip, the given values are,
constant speed v₁ = 33 km/hr
constant speed v₂ = 72 km/hr
What is average speed?The average speed of the car is defined as the ratio of the total distance travelled by the car to the total time taken by the car.Average speed = total distance traveled / total time taken
Let d is the total distance traveled by the car.
Thus , distance traveled in each journey is d/2.
So, the time taken for going up the hill is t₁ = (d/2) / v₁
= (d/2) / 33
= d / 66
Next, the time taken for going down the hill is t₂ = ( d/2 ) / v₂
= ( d/2) / 72
= d / 144
Thus, average speed is v avg = 2d / ( t₁ + t₂ )
= 2d / ( ( d/66)+(d/144))
= 2d / (210d / 9504)
= 2d / 0.0220959
= 90.51 km/hr.
The average speed of the round trip is 90.51 km/hr.
Learn more about the average speed,
https://brainly.com/question/13287653
#SPJ1
a race car starts from rest and travels east along a straight and level track. for the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by vx(t)
The acceleration is aₓ = 7.54 m/s².
How to find the acceleration?The rate at which an item changes its velocity is known as the vector quantity known as acceleration.
When an object's velocity changes, it is said to be accelerating.
uₓ(t) = (0.980 m/s³) t²
The time-dependent derivative of velocity is acceleration.
aₓ(t) = 2 (0.980 m/s³) t
aₓ(t) = (1.96 m/s³) t
When,
uₓ = 14.5 m/s, the time is:
14.5 m/s = (0.980 m/s³) t²
t = 3.85 s
Connecting to the acceleration equation,
aₓ = (1.96 m/s³) (3.85 s)
aₓ = 7.54 m/s²
To learn more about acceleration, refer
https://brainly.com/question/18608559
#SPJ4
is calcium bromide a element, compound, solution, or heterogenous mixture
Calcium Bromide, commonly known as calcium dibromide, is an ionic compound since the second element is a nonmetal, resulting in an ionic compound. It is referred to as a hydrated salt.
What is a Compound?A chemical compound is a material made up of several similar molecules that include atoms from more than one chemical element and are kept together by chemical bonds. A molecule made up of only one element's atoms is hence not a compound.
What is a solution?A solution is a form of homogenous combination made of two or more components in chemistry. A solute in such a combination is a material that has been dissolved in another substance known as a solvent.
Learn more about Compound:
https://brainly.com/question/704297
#SPJ1
Convert the running time of Gone With the Wind to hours and minutes.
The running time of Gone in hour and minutes is determined as 1 hour, 2 minutes.
What is time conversion?Time conversion is the process by which the unit of time is converted from one form to another.
For example, time can be converted in the following units;
seconds to minutesminutes to hourhour to minutehour to secondsminutes to secondsseconds to hourThe following conversion factors is used to convert time from one unit to another;
3600 seconds = 1 hour
60 minutes = 1 hour
60 seconds = 1 minute
To convert the running time of Gone to hours and minutes;
3720 seconds = 3600 seconds + 120 seconds
recall 3600 seconds = 1 hour
120 seconds = 120 s/60 s = 2 minutes
3720 seconds = 1 hour, 2 minutes
Thus, the running time of Gone in hour and minutes is determined as 1 hour, 2 minutes.
Learn more about unit of time here: https://brainly.com/question/11888964
#SPJ1
The complete question is below;
The running time of Gone is 3720 seconds. Convert the running time of Gone With the Wind to hours and minutes.
An ideal step down transformer is connected to main supply of 240v it is desired to operate 12v 30w lamp what is the current in primary coil ?
The current in the Primary coil of an ideal step-down transformer is 0.125A.
The transformer is a device that is used to change the value of alternating voltage from one value to another, according to the requirements. It is of two types namely, Step up transformer and Step-down Transformer.
If we assume that the efficiency of a transformer is 100 percent, then the power in the primary coil is equal to the power in the secondary coil.
Power is expressed as P=V×I
Where P is power, V is voltage, and I is current.
if the transformer is ideal then;
Output power = Input power
(V output)×(I output) = (V input)×(I input)
=> 30 = 240×(I input)
=> I input = 30/240 = 0.125 A
Thus, the current in the Primary coil of an ideal step-down transformer is 0.125A.
Learn more about Transformer at:
brainly.com/question/7551270
#SPJ4
6. What is the
displacement of a horse that runs at a velocity
of 3.2 m/s [S] for 12 s? T/I h
The displacement of the horse is 38.4 m/s.
Given :
velocity of the horse = 3.2 m/s
The time that the horse
displacement of the horse =?
According to the formula,
velocity = displacement/time
we can get the value of displacement.
That is, displacement = velocity×time
Substituting the values of velocity and time, we get
displacement = 3.2 × 12 m
That is, displacement = 38.4 m
Hence, the displacement of the horse is 38.4 m/s.
It measures the length and angle of the net motion, or total motion, in a straight line from the starting point to the destination of the point trajectory. The translation that links the starting point and the ending point can be used to spot a displacement. The final location of a point relative to its beginning position xi, or a relative position (derived from the motion), is another way to express a displacement. The difference between the end and beginning positions can be used to define the equivalent displacement vector:
To learn more about displacement refer to the link:
brainly.com/question/11934397
#SPJ9