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Find the location of the center of mass of a molecule and force between two masses separated by a distance.

1. The separation between hydrogen and chlorine atoms of the HCl molecule is about 1.30 × 10-10 m. What the location of the center of mass of molecule is as measured from the hydrogen atom (Chlorine is 35 times more massive than hydrogen.)?

1. 1.26 × 10-10 m
2. 0.50 × 10-10 m
3. 0.30 × 10-10 m
4. None of the above.

2. Two masses m1 and m2 are separated by a distance of d. The force between them is equal to

1. F = (GN m1 m2)/d2
2. F = m1 m2 d3
3. F = 46 N
4. F = m1 m2 a2

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