Two objects of different masses have momentum of equal, non-zero magnitude. Which object has more kinetic energy?
A) the heavier object
B) the lighter object
C) They both have the same kinetic energy.
B
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If the Sun collapsed to a black hole, Earth's speed in space would
A) increase. B) decrease. C) remain the same.
Most small moons tend to be old and geologically inactive. Explain why Enceladus appears to break that general rule
What will be an ideal response?
Orbital resonance also gives Europa an elliptical orbit, so it experiences tidal heating, too. However, Europa experiences less tidal heating than Io, because Europa __________ than Io.
a. is farther from Jupiter b. is much smaller c. is more perfectly spherical in shape d. contains much more ice
Electric fields produced by changing magnetic fields
A) start on positive charges and end on negative charges. B) start on negative charges and end on positive charges. C) are conservative. D) are nonconservative. E) do not exist.