Question

Your boss asks you to adjust the temperature so that a sound wave travels more quickly through the air. You increase the temperature from 30°C to 36°C. What's the velocity of the sound wave at this new temperature?
A. 352.6 Hz B. 350.0 Hz C. 344.0 Hz D. 335.6 Hz

Answer 1

We can calculate the speed of sound with this formula:
v = 331 + 0.6T, where v is the velocity of the sound wave in units of m/s and T is the temperature measured in degrees Celsius.

When the temperature is 36°C, the velocity of the sound wave is:
v = 331 + (0.6)(36) = 331 + 21.6 = 352.6 m/s.

The correct answer is A. 352.6 m/s

(Please note that we do not use the unit Hz to measure the velocity of a sound wave. The unit Hz is used to measure frequency. We should use m/s to measure the velocity of a sound wave.)