# HW Ch14 - HW Ch. 14 Fluid Mechanics Chapter 14: Fluid...

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HW Ch. 14 Fluid Mechanics Chapter 14: Fluid Mechanics Conceptual problems 14.C.6 (5.00) A barometer is constructed using a closed-end tube containing a vacuum above a column of mercury, as described in the textbook. On a certain day, the pressure exerted solely by this column of mercury at the bottom of the tube is 1.024×10 5 Pa. Check each of the following quantities that are equal to this measurement. Absolute pressure at bottom Atmospheric pressure (0/1 submissions used) 14.C.8 (5.00) An empty boat is placed in a freshwater lake and a mark is painted on the hull at the waterline, a line corresponding to the surface of the water when the vessel is floating upright. The same boat is then transported to Jupiter, and placed into a pool of fresh water that has been prepared just for this comparison experiment. The acceleration due to gravity on Jupiter is 2.6 times what it is on Earth. The new waterline is noted on Jupiter. Compared to the waterline mark on Earth, where is the new waterline mark located on the hull of the boat? Ignore atmospheric effects. The new waterline mark is higherlowerat the same place (0/1 submissions used) on the hull. 14.C.9 (5.00) An empty boat is placed in a freshwater lake and a mark is painted on the hull at the waterline, a line corresponding to the surface of the water when the vessel is

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floating upright. The boat is then transported to the Dead Sea, where the liquid density is about 1.2 times that of fresh water due to the high concentration of salts. A waterline mark is noted in the Dead Sea. Compared to the first waterline mark, where is the new waterline mark located on the hull of the boat? The new water line mark is lower on the hull The new waterline mark is higherlowerat the same place (0/1 submissions used) on the hull. 14.C.1 6 (5.00) Susie is out fishing again on another calm, sunny day. She sees a chunk of firewood floating in the water, and hauls it into her boat. In principle, how does the water level of the lake change? The lake's water level dropsdoes not changerises (0/1 submissions used) Section 2: Density 14.2.4 (5.00) In the opening sequence of the movie, Raiders of the Lost Ark , the intrepid explorer Indiana Jones deftly swipes a golden idol from a Mayan temple, instantly replacing it with a bag of sand of the same size to neutralize the ancient weight-based booby trap protecting it. (a) The density of gold is 19,300 kg/m 3. If the idol's mass is 11.3 kg and it is solid gold, calculate its volume. (b) The density of silica sand is 1220 kg/m 3 . What is the mass of a sandbag of equal volume? (c) Is the scene realistic? (a)
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## This note was uploaded on 05/11/2011 for the course PHYS 1401 taught by Professor Broyles during the Spring '08 term at Collin College.

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HW Ch14 - HW Ch. 14 Fluid Mechanics Chapter 14: Fluid...

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