Plate tectonics is currently found
A) on all of the terrestrial planets
B) only on Venus and the Earth
C) only on the Earth, Venus and Mars
D) only on the Earth
D
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The most detailed look we've had of an asteroid comes from
A) spacecraft sent to an asteroid. B) ground-based radar images. C) Earth orbital X-ray images. D) ground-based optical images. E) high-altitude UV spectroscopy.
At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m. The density of mercury is 13.6 × 10^3 kg/m3 . A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?
a. the same height h b. about 1.36h c. less than one tenth h d. more than ten times h
A proton's rest mass is 1.67 × 10^-27 kg. Calculate its kinetic energy when it is accelerated to a speed of 0.80 c
a. 1.0 × 10^-10 J b. 1.5 × 10^-10 J c. -2.0 × 10^-10 J d. 2.5 × 10^-10 J e. 7.5 × 10^-10 J
Two observers will always agree on
A. the speed of light. B. the mass of cosmic ray muons. C. the charge of cosmic ray muons. D. the lifetime of cosmic ray muons.