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Ilya [14]
1 year ago
9

How do i calculate the kinetic energy

Physics
1 answer:
Stella [2.4K]1 year ago
4 0

The kinetic energy is found at 150 J. The work-energy theorem is applied in the given equation.

<h3>What is Kinetic energy?</h3>

The energy possessed by the body by the virtue of motion is known as Kinetic energy. It is found as the product of mass and the square of the velocity.

The given data in the problem is;

The mass is, m=0.15 kg

Force, F=300 N

Distance,d=0.50 m

From the work-energy theorem, kinetic energy is equal to the work done.

Work done = Kinetic energy

\rm F  \times d  = KE \\\\ KE= 300 \times 0.50 \\\\ KE=150 \ J

Hence, kinetic energy is found at 150 J.

To learn more about the kinetic energy, refer to the link;

brainly.com/question/12669551

#SPJ1

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Mr. Mann explained that when light passes from air into the water, the light waves bend, or ___________, and the pencil appears
posledela

Answer:

the light waves bend or REFRACT

Explanation:

4 0
2 years ago
The aeroplane lands at a speed of 80 m/s
strojnjashka [21]

The mass of the aeroplane is 300,000 kg.

<h3>What is Newton's second law of motion?</h3>

It states that the force F is directly proportional to the acceleration a of the body and its mass.

The law is represented as

F =ma

where acceleration a = velocity change v / time interval t

Given is the aeroplane lands at a speed of 80 m/s. After landing, the aeroplane takes 28 s to decelerate to a speed of 10 m/s. The mean resultant force on the aeroplane as it decelerates is 750 000 N.

The force expression will be

F = mv/t

Substitute the values and we have

750000 = m x  (80 -10)/ 28

750,000 = m x 2.5

m = 300,000 kg

Thus, the mass of the aeroplane is 300,000 kg.

Learn more about Newton's second law of motion.

brainly.com/question/13447525

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8 0
2 years ago
Use the information from the graph to answer the question. What is the acceleration of the object
Art [367]

Answer:

-2.5 m/s²

Explanation:

The acceleration of a body is the change in it's velocity with time.

The change in velocity with time can be obtained as the slope of a velocity time graph ;

Acceleration = (change in velocity / change in time)

Taking the slope :

Change in Velocity = △y = y2 - y1

Change in time = △x = x2 - x1

(10, 15) ; (0, 40)

△y / △x = y2 - y1 / x2 - x1 = (40 - 15) / (0 - 10)

△y / △x = 25 / - 10 = - 2.5 m/s²

4 0
2 years ago
A wedge shaped air film is made between two sheets of glass using a spacer at one end of the glass sheets. If light of wavelengt
pychu [463]

Answer:

1178 nm

Explanation:

We are given that

Wavelength of light=\lambda=589nm=589\times 10^{-9} m

1nm=10^{-9} m

We have to find the thickness of spacer if five dark fringes are observed between the edges of the glass.

Suppose that first dark fringe and fifth dark fringe near spacer, then the path length of light is 4 times the wavelength of light.

The light passes through air film is two times  then the change in air film thickness  from one edge to other is two times the wavelength of light.

Change in air film thickness  from one edge to other edge  is same as the thickness of spacer.

Therefore, thickness of spacer=2\lambda

Thickness of spacer=2\times 589\times 10^{-9}m

Thickness of spacer=1178 nm

Hence, the thickness of spacer=1178 nm

8 0
2 years ago
True or false Water is a solute in moist air
Advocard [28]

Answer:

True

Explanation:

8 0
2 years ago
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