2 years ago

Does sound travel faster in a warm room or a cold room? Explain ur answer ?

Physics

1 answer:

Solnce55 [7]2 years ago

4 0

Warm because everything travels faster in warm weather

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With a frequency of 500 hz, what is the period of a wave

Pavlova-9 [17]

<span>500 hz means 500 times in a second therefore its 2.</span>

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3 years ago

What is the speed of a wave that has a frequency of 2,400 Hz and a wavelength of 0.75

likoan [24]

Answer:

1800 m/s

Explanation:

The equation is v = fλ

λ= 0.75

f = 2400 Hz

V = 2400 × 0.75

V = 1800 m/s

[ you did not give units for wavelength, I assumed it would be m/s]

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3 years ago

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34kurt

The answer is d! I’m happy to help :)

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Consider the following four objects: a hoop, a solid sphere, a flat disk, a hollow sphere. Each of the objects has mass M and ra

Svetlanka [38]

Answer:

Hoop.

Explanation:

The angular acceleration performed at a given torque:

$\alpha = \frac{\tau}{I}$

The moments of inertia of each element are described below:

Hoop

$I = M\cdot R^{2}$

Solid sphere

$I = \frac{2}{5}\cdot M \cdot R^{2}$

Flat disk

$I = \frac{1}{2}\cdot M \cdot R^{2}$

Hollow sphere

$I = \frac{2}{3}\cdot M \cdot R^{2}$

The greater the moment of inertia, the greater the torque to obtain the same angular acceleration. Therefore, the hoop requires the largest torque to receive the same angular acceleration.

8 0

3 years ago

Answer please help me

aksik [14]

Answer:

It is showing the wavelength.

Explanation: Hope it helps you:)))

have a good day

7 0

2 years ago