All categories

4 years ago

What's the relationship between mass and kinetic energy

2 answers:

7 0

Whenever mass increases, Kinetic energy also increases. This is used in roller coasters if an example is needed. (Hope this helps my friend)

Licemer1 [7]4 years ago

4 0

They have a direct relationship. As mass increases, kinetic energy increases.

You might be interested in

How can I protect my computer from being shot by an MBT

Pie

Answer: While Technology is Evolving so is Hackers that being said "Norton Vpn" would be beneficial for computer protection.

Explanation:

4 0

3 years ago

While running a 100m race, a runner runs from the 20m to 30m mark in 77 frames of a video record. If the video camera recorded d

Marrrta [24]

Answer:

Speed of the runner during video interval is 6.49 m/s

Explanation:

According to the problem,

Number of frames recorded by camera in 1 second = 50

Time takes by camera to record 1 frame = (1/50) s

Time taken by camera to record 77 frames, t = $\frac{1}{50}\times 77$ s

Distance covered by the runner during the video recording, d = 10 m

Speed, v = $\frac{Distance}{time}=\frac{d}{t}$

Substitute the values of d and t in the above equation.

v = $\frac{10}{\frac{77}{50} }$

v = 6.49 m/s

3 0

4 years ago

Toma is almost five years old. As he was struggling to learn to tie his shoes, his parents became exasperated with him and bough

olasank [31]

Answer:

Guilt

Explanation:

Erikson´s theory mention that the development of the personality in a human being is define by eight stages in life, depending the experiences and the good feelings or bad ones, men can develop different feelings.

In the stage from 3 to 5, the children can develop initiative or guilt, in this case, since Toma has experience 2 bad experiences in which he can not deal with the challenge, it will feel guilt.

4 0

4 years ago

Suppose you toss a tennis ball upward.a) Does the kinetic energy of the ball increase or decrease as it moves higher?b) What hap

Lilit [14]

Answer:

a) No. The kinetic energy of the ball decreases.

b) The potential energy of the ball increases.

c) The ball would go half of the original distance.

Explanation:

a) The kinetic energy would be converted to potential energy as the ball goes higher. Since the total mechanical energy is conserved, the kinetic energy would decrease.

b) The potential energy of the ball would increase. Since the total mechanical energy of the ball is conserved, the ball would lose speed, and therefore kinetic energy. In order to compensate the loss of kinetic energy, the ball would gain potential energy as it goes higher.

c) The relation of the energy and mass is as follows:

$K = \frac{1}{2}mv^2\\U = mgh$

According to the energy conservation

$K_1 + U_1 = K_2 + U_2\\\frac{1}{2}mv^2 + 0 = 0 + mgh\\\frac{1}{2}v^2 = gh$

The maximum height that the ball reaches is proportional to the initial velocity. If the ball would be imparted with the same amount of energy, its final potential energy would be the same. However, in order to have the same potential energy (mgh), its height would be half of the original case.

$mgh = (2m)g(\frac{h}{2})$

7 0

3 years ago

a man pulls a box with a force of 90.00 N directed along the handle which makes angle of 45 degrees with the ground. Find the ho

IrinaK [193]

Answer:

both are 45√2N

Explanation:

90 sin45°=90 cos45°=45√2N

3 0

3 years ago