Label 1a lies on the rim of a large crater, and label 1b lies on the rim of a smaller one. Which crater must have formed first?
A) crater 1a
B) crater 1b
C) cannot be determined
A) crater 1a
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The trade wind belts are regions of generally
A) little rainfall. B) heavy rainfall. C) low temperatures. D) westerly winds.
In the context of the history of the Moon, the slow surface evolution of the Moon was limited because:
A) the Moon lacks air and water. B) the Moon has a very high escape velocity. C) of the heat released from infalling matter. D) of the late heavy bombardment.
The period of a pendulum is 2.0 s in a stationary inertial frame of reference. What is its period when measured by an observer moving at a speed of 0.80c with respect to the inertial frame of reference?
a. 1.6 s c. 2.5 s b. 1.2 s d. 3.3 s
The kinetic energy of the electron in the first Bohr orbit of hydrogen is 2.18 × J
Indicate whether the statement is true or false