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6 a) A sound wave in a fresh water lake takes 4 s to return to the surface of the lake. How deep is the lake at that point?
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4 votes
6 a) A sound wave in a fresh water lake takes 4 s to

return to the surface of the lake. How deep is the
lake at that point?

User Luceos
by
5.0k points

1 Answer

6 votes

Answer:

d=2962 m= 2,962 km

Step-by-step explanation:

s=2*d, d is the depth

t=4 s

vH2O= 1481 m/s

d=?

s=vH2O*t

s=1481 m/s*4 s

s=5924 m

yields

d=s/2

d=2962 m= 2,962 km

User Abigblackman
by
4.4k points
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