A satellite is moved from a low orbit to one that is twice as far from Earth. Its weight at its new orbit is ________.
A. unchanged
B. increased by a factor of 2
C. decreased by a factor of 2
D. decreased by a factor of 4
E. There is no gravity in space.
Answer: D
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A. A B. B C. C D. D E. Upward F. Downward T. (The vector is zero)
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Which type of heating causes sunburn?
a. conduction b. convection c. radiation d. all of the above
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