3 years ago

Friction changes the energy of an object from kinetic energy to _____________ energy?

Physics

1 answer:

netineya [11]3 years ago

3 0

I think it’s solar but don’t quote me

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Pendulum A has a bob of mass m hung from the string of length L; pendulum B is identical to A except its bob has the length 2L.

GenaCL600 [577]

Answer:

$f_{B}: f_{A} = \sqrt{\frac{2}{1}}$

Explanation:

For pendulum A: Length = L and gravity = g

The frequency of pendulum A is given by

$f = \frac{1}{2\pi }\sqrt{\frac{g}{L}}$

Here, f is the frequency, L be the length

$f_{A} = \frac{1}{2\pi }\sqrt{\frac{g}{L}}$ ... (1)

For pendulum B: Length = 2L, gravity = g

The frequency of pendulum B is given by

$f_{B} = \frac{1}{2\pi }\sqrt{\frac{g}{2L}}$ .... (2)

Divide equation (1) by (2)

$f_{B}: f_{A} = \sqrt{\frac{2}{1}}$

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2 years ago

How are rainbows formed? Please explain.

Flauer [41]

Answer:

when sun shines through rain

Explanation:

Rainbow is an arc of different colours that appears in the sky when sun shines through rain

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It lowers your blood pressure for suree

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M/s=hz•m 10hz•15m=150m/s

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Amy because she is lighter, so the more force will be put on her

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