Question

How long would it take for a sound impulse to travel through a copper rod at 25 kilometers long

Answer 1

The time taken is 5.43 s

Explanation:

The motion of the sound impulse through the rod is a uniform motion (=constant velocity and constant speed), so we can use the following equation

$d=vt$

where

d is the distance covered

v is the speed

t is the time taken

Here we have:

d = 25 km = 25,000 m is the distance to be covered

v = 4600 m/s is the speed of sound in copper

Solving the equation for t, we find the time taken:

$t=\frac{d}{v}=\frac{25,000}{4600}=5.43 s$

Learn more about speed here:

brainly.com/question/8893949

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