Question

How long would it take for a sound impulse to travel through an aluminum rod 150 meters long?

_____ s
0.029
0.29
3.4
34

Answer 1

The speed of sound through an aluminum is 5100 m/s.
Speed is distance over time.
s = d/t
Since t is unknown, the answer will be
t = d/s = 150/5100 = 0.029 seconds

Answer 2

0.029 s

Step-by-step explanation:

The speed of sound in aluminim is v = 5100 m/s.

The sound travels in aluminium by uniform motion (constant speed), so we can find the time it takes to cover a certain distance by using the equation:

`t=(d)/(v)`

where d is the distance covered, in this case d = 150 m. Substituting the numbers into the equation, we find

`t=(150 m)/(5100 m/s)=0.029 s`