Two masses m1 and m2, are separated by a distance r. The forces of attraction between the two masses is F.
a. if m1 is doubled, how does F change?
b. if neither of the masses were changed, but r was doubled, how would F change?
c. if r was not changed but both masses were doubled, how would F change?
d. if r was halved and both masses were doubled, how would F change?
Answer: b. if neither of the masses were changed, but r was doubled, how would F change?
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