Answer:
Explanation:
Galaxies are moving closer
Answer:
18.8m
Explanation:
This implies calculating the relative speed first then find the distance d
So
relative speed = 2.75- 1.25 = 1.5 m/s
So assume the distance between them to be say d
so, d/1.5= 12.5
d = 18.8m
Hooke's Law: F = - k x
Potential energy, PE = [1/2] k x^2 = [1/2] kx x = [kx][x/2] = -Fx/2
F = - 2*PE / x = - 2*0.0030J / 0.0047m = -1.28 N (the negative sigh indicates that the force is opposed to the displacement of the spring)
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