The Sun appears to rotate only because the Earth is revolving about the Sun
Indicate whether the statement is true or false
F
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The most well-known impact crater in North America is
A) Crater Lake in Oregon B) Meteor Crater in Arizona C) Great Crater in Iowa D) Odessa Crater in Texas
Two charged objects attract each other with a certain force. If the charges on both objects are doubled with no change in separation, the force between them
A) becomes zero. B) doubles. C) halves. D) quadruples. E) increases, but we can't say how much without knowing the distance between them.
An interaction between a large and a small elliptical galaxy that results in a large spiral and a small elliptical galaxy takes:
A) several thousand years. B) several hundred thousand years. C) several million years. D) several hundred million years. E) several billion years.
An astronaut stands by the rim of a crater on the moon, where the acceleration of gravity is 1.62 m/s2 To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom
If the depth of the crater is 120 m, how long does it take for the rock to fall? A) 3.04 s B) 12.2 s C) 29.3 s D) 32.1 s E) 37.5 s