The fresh, newly created surfaces of icy satellites of Jovian planets
a. appear dark in color with few impact craters.
b. appear dark in color with many impact craters.
c. appear very bright because fresh ice is very reflective.
d. generally show long bright grooves and a modest number of impact craters.
e. generally have small volcanoes that are active.
c
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Fluid Flow: Consider a very small hole in the bottom of a tank that is 17.0 cm in diameter and filled with water to a height of 90.0 cm. Find the speed at which the water exits the tank through the hole.
A. 4.20 m/s B. 17.64 m/s C. 44.1 m/s D. 48.3 m/s
A comet’s plasma tail always points directly away from the Sun because __________.
a. of pressure exerted by the fast-moving charged particles in the solar wind b. centrifugal forces throw the tail outward as the comet travels around the Sun c. the comet’s nucleus overheats on the Sun-facing side, forcing energetic jets of gas to shoot out from the dark side d. the tail is left behind as the comet moves through its orbit
Consider an ideal gas at 1.0 atmosphere in a closed container. If the temperature changes from 300. K to 450. K, the final gauge pressure will be
A) 0.5 atm. B) 4.5 atm. C) 1.5 atm. D) 3.0 atm. E) 21. psi.
Light of wavelength 425.0 nm in air falls at normal incidence on an oil film that is 850.0 nm thick. The oil is floating on a water layer 15 cm thick. The refractive index of water is 1.33, and that of the oil is 1.40
You want to add oil so that light reflected off of the top of the oil film will be canceled. What is the minimum distance that you should INCREASE the oil film? A) 60.7 nm B) 75.9 nm C) 106 nm D) 121 nm E) 152 nm