The two 104-mm-diameter spheres constructed of different metals are located in deep space. Determine the gravitational force F which the copper sphere exerts on the titanium sphere if (a) d = 2.2 m, and (b) d = 3.8 m. Copper Answers: (a) F = (i (b) F-(i Titanium j+ i j+i k) (10) N k) (10) N
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