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whatwhat11
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A swimmer sees a parachutist hit the water and hears the impact twice, once through the water and the second time through the air, 1.0 s later. How far from the swimmer did the impact occur?
Vs air = 340 m/s Vs water = 1400 m/s the answer is 450m
I don't understand what to do
Vs air = 340 m/s Vs water = 1400 m/s the answer is 450m
I don't understand what to do