1 year ago

Which image best represents kinetic energy?

Physics

2 answers:

Anni [7]1 year ago

6 0

Answer:

throwing a ball

Explanation:

because when we throw the ball we apply force so that the ball goes faster

Yuliya22 [10]1 year ago

4 0

i think the image in the attachment does...

hope it helps...!!!

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Which of the following activities belongs on the top of the physical activity for pyramid

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Playing Vedio Games. :)

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2 years ago

Help me I do not understand

ololo11 [35]

Answer:

170N

Explanation:

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2 years ago

Unpolarized light passes through a combination of two ideal polarizers. The transmission axes of the first polarizer and the sec

Yuliya22 [10]

Answer:

62.5 %

Explanation:

Let the initial intensity of unpolarized light is Io.

After first polariser the intensity of light becomes I'.

So, $I' = \frac{I_{0}}{2}$

Now it passes through another polariser. The angle between the first polariser and the second polariser is given by Ф. The intensity is I''.

According to the law of Malus

$I'' = I' Cos^{2}\phi$

Here, Ф = 30 degree

$I'' = \frac{I_{0}}{2} Cos^{2}30=0.375I_{0}$

The percentage change in the intensity is given by

$\frac{I_{0}-I''}{I_{0}}\times 100=\frac{I_{0}-0.375I_{0}}{I_{0}}\times100$

= 62.5 %

7 0

2 years ago

If an object is moving with constant velocity, what do you know about its acceleration?

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It's equals to zero (a=0)

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2 years ago

Two lumps of clay having equal masses and speeds, but traveling in opposite directions, collide and stick together. Part A Which

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Answer:

Explanation:

mass of clay = m

velocity is u

By use of conservation of momentum

m x u - m x u = (m + m) x v

v = 0

So, they stick together and comes to rest.

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2 years ago