Consider two planets in space that gravitationally attract each other. If the masses of both planets are doubled, and the distance between them doesn't change, then the force between them is
A) one-quarter.
B) half as much.
C) twice as much.
D) four times as much.
E) none of the above
Answer: D
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The search for Earth-like extraterrestrial life is essentially a search for
A) energy B) liquid water C) oxygen D) carbon
H3PO4 is the formula for ______________acid
Fill in the blank(s) with correct word
The Himalayan Mountains formed at which type of plate boundary?
A) transform—fault boundary B) Oceanic—continental convergent boundary C) divergent boundary D) continental—continental convergent boundary
Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t.The potential energy of the crate is mgd
a. True b. False Indicate whether the statement is true or false