2070Nov22Prob_Soln (1)

# 2070Nov22Prob_Soln (1) - Physics 2070 Fall 2011 1. (5...

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Physics 2070 Fall 2011 1. (5 points) A diver descends from a salvage ship to the ocean floor at a depth of 35 m below the surface. The density of ocean water is 1025 kg/m 3 . a. Calculate the gauge pressure on the diver on the ocean floor. b. Calculate the absolute pressure on the diver on the ocean floor. The diver finds a rectangular aluminum plate having dimensions 1.0 m x 2.0 m x 0.03 m. A hoisting cable is lowered from the ship and the diver connects it to the plate. The density of aluminum is 2700 kg/m 3 . Ignore the effects of viscosity. c. Calculate the tension in the cable if it lifts the plate upward at a slow, constant velocity. d. Will the tension in the cable increase, decrease, or remain the same if the plate accelerates upward at 0.05 m/s 2 ? Explain your reasoning. The tension in the cable will increase if the plate accelerates upward. The only forces on the plate are the tension in the cable, the weight of the cable, and

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## This note was uploaded on 12/21/2011 for the course PHYS 2070 taught by Professor Thompson during the Spring '08 term at Toledo.

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2070Nov22Prob_Soln (1) - Physics 2070 Fall 2011 1. (5...

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