Quiz1 B - Exam Fluid Motion Name_ MULTIPLE CHOICE. Choose...

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Exam Fluid Motion Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits. The hurricane rapidly decreases the external air pressure to 0.910 atm. What net force (directed outwards) is exerted on a 1.25 - m square window on the house? A) 1.74 x 10 4 N B) 2.05 x 10 5 N C) 1.83 x 10 5 N D) 1.38 x 10 4 N 2) A house is supported on 20 pilings each with a 0.5 m 2 area at the base. The soil can withstand 5 psi. What could be the maximum mass of the house? A) 8.9 x 10 4 kg B) 1.8 x 10 4 kg C) 3.5 x 10 4 kg D) 7.0 x 10 4 kg 3) A hollow steel ball of diameter 3 m barely floats in water (has a neutral buoyancy). What is the wall thickness of the ball? (ρ Fe = 7.87 g/cm 3 ) A) 79 cm B) 37 cm C) 6.6 cm D) 13 cm
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This note was uploaded on 11/18/2011 for the course PHYS 2C PHYS 2C taught by Professor Groisman during the Spring '11 term at UCSD.

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Quiz1 B - Exam Fluid Motion Name_ MULTIPLE CHOICE. Choose...

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