Question: A marine salvage crew raises a crate that measures 1.4 m x 0.75 m x 0.5 m. The average density of the empty crate is

A marine salvage crew raises a crate that measures 1.4 m x 0.75 m x 0.5 m. The average density of the empty crate is the same as seawater, 1.025 x 10³ kg/m³, and its mass when empty is 32 kg. The crate contains gold bullion that fills 36% of its volume; the remaining volume is filled with seawater.

(a) What is the tension in the cable that raises the crate and bullion while the crate is below the surface of the sea?

(b) What is the tension in the cable while the crate is lifted to the deck of the ship if (1) none of the seawater leaks out of the crate, and (2) the crate is lifted so slowly that all of the seawater leaks out of the crate?

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