To what depth must a rubber ball be taken in deep sea so that its volume is decreased by 0.1%.From free body diagram of the wooden block,

Answers (1)

From free body diagram of the wooden block, 

V \sigma g=m g=\frac{0.5 \times 10^{-2}\left[3+\frac{0.5}{3}\right] \times 10^{-2} \times 10^{3} \times 9.81}{2}=0.77 N / m

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