A marching band is practicing. The band director sees the drum major hit a drum. How far away is the director if he hears the drumbeat in 0.40 seconds? The speed of sound is 330 m/s.

132 m

Explanation:

We can find the distance at which the director hears the drumbeat with the following equation:

Where:

d: is the distance

v: is the speed of sound = 330 m/s

t: is the time = 0.40 s

Hence, the distance at which the director hears the drumbeat is:

I hope it helsp you!

Explanation:

The sound is one form of mechanical wave, which is propagate at constant speed. Then, the distance between the drum  and the director is:

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explanation:

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