Consider the law of gravitational attraction. Two spheres with a mass, M, are attracted to each other by a force, F. If the distance between the two spheres doubles while the masses remain constant, will the force between the two spheres change? If yes, how?
A) Yes, the force decreases by 1/4.
B) Yes. The force decreases by 1/2.
C) Yes, the forces decreases by 1/16.
D) No. The force remains constant because the masses remain constant.
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Answer:
a)yes , the force decreases by 1/4
Explanation:
use the formula (Gmm)/r^2
initially r = 1
but now that r has doubled , r = 2
hence = 1/2^2
= 1/4
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