A piece of aluminum has density 2.70 g/cm3 and mass 834 g. The aluminum is submerged in a container of oil (oil's density = 0.650 g/cm3). How much oil does the metal displace?
a. 287 cm3
c. 232 cm3
b. 309 cm3
d. 1125 cm3
B
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A 14-cm diameter champagne bottle rests on its side on top of a frictionless horizontal table. Suddenly, the cork pops and the bottle slides backward, covering a distance of 22cm in 0.44s
If the mass of the bottle is 500 times the mass of the cork, find the distance from the original position that the cork will land on the table. Neglect air resistance and assume that the cork is very small compared to the bottle. A) 3,000 cm B) 60 m C) 85 m D) 8.5 cm
The distance between Earth and the Moon is 3.84 108 m. A pulse of laser light aimed at the Moon that bounces back to Earth undergoes a round-trip time of about
A) zero seconds. B) less than 1 second. C) two and a half seconds. D) three seconds.
The Milankovitch hypothesis suggests that the shape of Earth's orbit, its precession, and tilted axis can influence climatic changes and thus cause _____
a. hurricanes b. ice ages c. season shift d. longer days e. warmer weather
Devil's Tower National Monument is 1280 ft high. Convert this height to meters