3 years ago

Why does the sound of something moving away from you seem to change to lower and lower pitch

Physics

1 answer:

lesantik [10]3 years ago

3 0

The doppler effect.
You are welcome.

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a stone attached to 1m long string is moving with the speed of 5ms in a circle find the centripetal acceleration of the stone

Dafna1 [17]

Answer:

The centripetal acceleration of the stone is 5 m/s²

Explanation:

The length of the string to which the stone is attached, r = 1 m

The speed with which the string is rotated, v = 5 m/s

The centripetal acceleration, $a_c$ , is given as follows;

$a_c = \dfrac{v^2}{r}$

Therefore, the centripetal acceleration of the stone found as follows;

$a_c = \dfrac{(5 \ m/s)^2}{1 \ m} = 5 \ m/s^2$

The centripetal acceleration of the stone, $a_c$ = 5 m/s².

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Basalt is pushed into the crust by subduction. It will most likely become _____.

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I NEED THIS ASAP!!! A ball is thrown straight up with an initial velocity of 4.40 m/s. Assuming there is no air friction, what i

Lilit [14]

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I think it is 80m/s

Explanation:

d = ½ g t2

= ½ (10 m/s2) (4 s)2

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75% sure

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My opinion, the answer is b

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