2 years ago

What happens to the frequency and pitch of sound if the object making the sound moves away from you ?

1 answer:

8 0

If you and the source of sound are moving apart, then the pitch (frequency) you hear is lower than the pitch (frequency) that's actually leaving the source.

It doesn't matter whether you or the source is the one moving, only that the distance between you is increasing.

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tensa zangetsu [6.8K]

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2 years ago

How long does it take for a dropped rock to fall from a height of 8 meters

seropon [69]

Answer:

1.28 s

Explanation:

Given:

Δy = 8 m

v₀ = 0 m/s

a = 9.8 m/s²

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(8 m) = (0 m/s) t + ½ (9.8 m/s²) t²

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umka21 [38]

Answer:

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Explanation:

Given that,

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So,

$v=\dfrac{25.13\ rad}{12\ s}\\\\v=2.09\ rad/s$

So, the angular velocity of the toy car is 2.09 rad/s.

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2 years ago

Which of the following is not a negative consequence of upward urban growth?

olga55 [171]

- - c. increased use of surrounding land

This is because its not a good consequence from the upward of urban growth.

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(physics: really?)
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