PHYS 2101 Chapter : Practice 1 3
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Question #1 (no points) bubble in the answer choice corresponding to your class section number: sec. Question #3 (5 points) blaise pascal duplicated torricelli"s barometer using a red bordeaux wine of density ! = 984 kg/m3 instead of mercury (see image at right). What is the height of the wine column for normal atmospheric pressure (101. 325 kpa): 76 cm, 11. 24 m, 10. 5 m, 10. 5 cm. Question #4 (5 points) a plastic sphere floats in glycerin (density ! = 1250 kg/m3) with 40% of its volume submerged. What is the density of the sphere: 1250 kg/m3, 500 kg/m3, 750 kg/m3, 625 kg/m3. Question #5 (5 points) the figure shows a hydraulic lever filled with oil. A force of fi = 4 n is applied on the input piston on the left, which has cross sectional area ai = 0. 87 m2. The output piston has cross sectional area ao = 2. 1 m2.
