Which of the following does not have a major effect in shaping planetary surfaces?

A) impact cratering
B) volcanism
C) tectonics
D) erosion
E) magnetism


E

Physics & Space Science

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If light travels 63,000 AU in 1 year at 3 × 10^8 m/s, which of these best represents the unit of a light-year?

a. 63,000 AU b. 3 × 10^8 m/s c. 1 year d. All of the other choices are correct.

Physics & Space Science

In the condensation theory of the Moon's origin,

a. the Moon broke from a rapidly spinning Earth. b. Earth and its Moon formed from the same cloud of matter. c. the Moon formed elsewhere in the solar nebula and was later captured by Earth. d. the Moon formed when a very massive planetesimal smashed into the young Earth.

Physics & Space Science

A boat hits a sandbar and slides some distance before coming to rest. Which of the arrows shown below best represents the direction of the boat’s acceleration as it is sliding? (Hint: Draw a motion diagram.)



A. A
B. B
C. C
D. D
E. E
F. F
T. Zero

Physics & Space Science

Which of the following statements is NOT correct about Bose-Einstein condensation?

a.The only fermions allowed in a Bose-Einstein condensation must come in pairs. b. Liquid 4He transitions to a superfluid as a Bose-Einstein condensate at a much higher temperature than liquid 3He transitions to a superfluid. c. A Bose-Einstein condensate has special properties because all of its constituent bosons are in the same quantum state. d. The wave functions of bosons in a Bose-Einstein condensate are forbidden to overlap due to the Pauli exclusion principle.

Physics & Space Science