Which of the following is closest in size (radius) to a white dwarf?
A) Earth
B) a small city
C) a football stadium
D) a basketball
E) the Sun
A
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The erupting geysers of nitrogen gas on Triton
A) are caused by a not yet determined internal energy source. B) can be viewed by the Hubble Space Telescope. C) produced the large liquid oceans. D) are increasing the moon's rotation rate. E) produced the frozen nitrogen surface.
Which of the following would not be considered a physical property?
A) temperature at which a material catches on fire B) color C) conductivity D) hardness E) temperature at which a material melts
A bumper car is moving at constant velocity when another bumper car starts to push on it with a constant force at an angle of 60 degrees with respect to the first car's initial velocity. The second bumper car continues pushing in exactly that direction for some time. What is most likely to happen is that
a. the first car will stop moving. b. the first car will move in the direction of the force. c. the first car's velocity will increase in magnitude but not change direction. d. the first car's velocity will gradually change direction more and more toward that of the force while increasing in magnitude. e. the first car's velocity will gradually change direction more and more toward that of the force while decreasing in magnitude.
The break-up of Pangaea had worldwide consequences—how did this impact climate and sea level?
What will be an ideal response?