Sound waves are also called compression waves. This means that as the wave travels through air, the ____ in creases and decrease
1 answer:
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Answer:
19.3m/s
Explanation:
Use third equation of motion
where v is the velocity at halfway, u is the initial velocity, g is gravity (9.81m/s^2) and h is the height at which you'd want to find the velocity
insert values to get answer