What is significant about Olympus Mons?
a. It is the only impact crater remaining on Mars.
b. It is the largest crater in the Solar System
c. It is the largest volcano on Venus.
d. It is the only composite volcano on Mars.
e. It is the largest volcano in the Solar System.
e
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Two eggs of equal mass are thrown at a blanket with equal velocity. Egg B hits the blanket but egg A hits the wall instead. Compare the work done on the eggs in reducing their velocities to zero
a. More work was done on A than on B. b. More work was done on B than on A. c. The amount of work is the same for both. d. It is meaningless to compare the amount of work because the forces were so different. e. Work was done on B, but no work was done on A because the wall did not move.
Molecular Speeds: The absolute temperature of an ideal gas is directly proportional to which of the following quantities?
A. the average speed of its molecules B. the average momentum of its molecules C. the average kinetic energy of its molecules D. the mass of its molecules E. It is proportional to all of these quantities.
The biggest surprise from the New Horizons flyby of Pluto was learning that Pluto _________.
A. has an ice-rich composition B. is too small to be considered a planet C. shows clear evidence of recent or ongoing geological activity D. has a moon named Charon
Voids contain about what percentage of the universe's mass?
A) 0 B) 5-10 C) 40-50 D) 100 E) cannot be determined