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2 years ago

true or false the speed of sound traveling through steel is much less than the speed of sound traveling through air

Physics

2 answers:

ValentinkaMS [17]2 years ago

5 0

True because steel is much heavier and will make the sound travel through it slower

Misha Larkins [42]2 years ago

4 0

This is false. Sound travels faster through steel. That is why you can see people in movies putting their ear on the railroads to see whether a train is coming. That is because they can't hear it through air, but the sound travels through the steel.

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vampirchik [111]

Answer:

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2 years ago

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galina1969 [7]

Answer:

The girl has greater tangential acceleration

Explanation:

The angular acceleration ( $\alpha$ ) of the merry go round is equal to the rate of the change of the angular velocity, $\omega$ :

$\alpha = \frac{d\omega}{dt}$

Since all the points of the merry go round complete 1 circle in the same time, the angular velocity of each point of the merry go round is the same, and so all the points also have the same angular acceleration.

The tangential acceleration instead is given by

$a_t = \alpha r$

where

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3 years ago

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zmey [24]

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3 years ago

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Travka [436]

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Zigmanuir [339]

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