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sukhopar [10]
3 years ago
5

A steel ball bearing is released from a height H and

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

Answer:

ELASTIC collision

kinetic energy is conservate

Explanation:

As the ball bounces to the same height, it can be stated that the impact with the floor is ELASTIC.

As the floor does not move the conservation of the moment

            po = pf

            -mv1 = m v2

- v1 = v2

So the speed with which it descends is equal to the speed with which it rises

Therefore the kinetic energy of the ball before and after the collision is the same

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anastassius [24]
The force acting between the particles is

F=k \frac{Q_{1}Q_{2}}{r^2}
Then
Q_{2}= \frac{5.2 \times 10^-^5 \times 0.024^2}{ 9.0 \times 10^9 7.2 \times 10^-^8} =4.622 \times 10^-^1^1C




7 0
2 years ago
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A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
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Answer:

Air resistance

Answer B is correct

Explanation:

The friction that occurs when air pushes against a moving object causing it to negatively accelerate is called as air resistance.

hope this helps

brainliest appreciated

good luck! have a nice day!

6 0
3 years ago
From a set of graphed data the slope of the best fit line is found to be 1.35 m/s and the slope of the worst fit line is 1.29m/s
Svetradugi [14.3K]

Solution:

Let the slope of the best fit line be represented by 'm_{best}'

and the slope of the worst fit line be represented by 'm_{worst}'

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\Delta m = \frac{m_{best}-m_{worst}}{2}               (1)

Substituting values in eqn (1), we get

\Delta m = \frac{1.35 - 1.29}{2} = 0.03 m/s

8 0
3 years ago
Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene mos
shusha [124]

The correct answer would be odor. Because it's sweet.  Boiling shape and hardness have nothing to do with sweet and floral :)

7 0
3 years ago
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A device that converts mechanical energy into electricity is a
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Answer:

An electric generator is a device that converts a form of energy into electricity.

Explanation:

7 0
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