The bathyscaphe Trieste consists of a thin-walled but very strong cylindrical hull, 15.2 m long and 3.66 m in diameter, filled with gasoline with a density of 880 kg/m3 to make it buoyant
If it is totally submerged in seawater with a density of 1025 kg/m3 and neither rising nor sinking, what is the weight of the Trieste craft? A) 127 kN
B) 227 kN
C) 327 kN
D) 427 kN
E) 527 kN
B
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A) less than 10.3 m B) 10.3 m C) more than 10.3 m
Elliptical galaxies contain only Population ________ stars and little gas and dust
Fill in the blank(s) with correct word
A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1000 W/m2 sunlight. What is the efficiency of the solar cell?
a. 16% b. 7% c. 23% d. 4% e. 32%
A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of mercury, its height would be about
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