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3 years ago

Why does the speed of sound depend on air temperature?

Physics

2 answers:

Solnce55 [7]3 years ago

5 0

A certain temperature can be thick so the speed may take longer to get to it's destination.

IRISSAK [1]3 years ago

4 0

<span>The speed of sound is dependent on how close together the molecules of the transmitting medium is.</span>

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Any one tell me about the earth rotation it rotatining or not with any proof?

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2 years ago

When 1 kg of water and 1 kg of wood absorb the same amount of heat, the change in temperature of the wood is greater than the ch

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Intermolecular forces in water are greater than those in wood. APEX

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3 years ago

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2 years ago

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A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provid

Sergeeva-Olga [200]

Answer:

$8.37*10^5$ rpm

Explanation:

Given that rotational kinetic energy = $4.66*10^9J$

Mass of the fly wheel (m) = 19.7 kg

Radius of the fly wheel (r) = 0.351 m

Moment of inertia (I) = $\frac{1}{2} mr ^2$

Rotational K.E is illustrated as $(K.E)_{rt} = \frac{1}{2} I \omega^2$

$\omega = \sqrt{\frac{2(K.E)_{rt}}{I} }$

$\omega = \sqrt{\frac{2(KE)_{rt}}{1/2 mr^2} }$

$\omega = \sqrt{\frac{4(K.E)_{rt}}{mr^2} }$

$\omega = \sqrt{\frac{4*4.66*10^9J}{19.7kg*(0.351)^2} }$

$\omega = 87636.04$

$\omega = 8.76*10^4 rad/s$

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$\omega = 8.76*10^4(\frac{60}{2 \pi})$

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2 years ago

Signal words most often used in a chronological essay are

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3 years ago

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