Which of the following statements about sound is true? Sound is a transverse wav

Question

Which of the following statements about sound is true?

       Sound is a transverse wave.
       Sound moves at a constant speed through a uniform medium.
       Sound can travel through vacuum.
       The loudness of sound waves is measured in hertz (Hz).
       None of the above

A torque of 12 N m is applied to a wheel with a moment of inertia of 2 kg m2. The angular acceleration of the wheel is

       6 r/s2.
       4 r/s2.
       2 r/s2.
       1 r/s2.
       None of the above

Which of the following statements about sound is true?

Explanation / Answer

Sound is a longitudinal wave. so ist is false

Sound moves at a constant speed through a uniform medium. True

Sound can travel through vacuum. False

The loudness of sound waves is measured in hertz (Hz).False

T = I
I = inertia
= alpha (rad/s²)
12/2 = = 6 rad/s² so option ist is correct

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