Multiple Choice
Two spheres are separated by 10m. If the lighter 40kg sphere feels a gravitational force of 1.6 × 10-9 N, what is the mass of the heavier sphere?
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Multiple Choice
Two spheres of mass 300 kg and 500 kg are placed in a line 20 cm apart. If another sphere of mass 200 kg is placed between them, 8 cm from the 300 kg sphere, what is the net gravitational force on the 200 kg sphere?
A
-7.32×10-4 N (toward 300kg sphere)
B
-1.62×10-4 N (toward 300kg sphere)
C
7.32×10-4 N (toward 500kg sphere)
D
1.62×10-4 N (toward 500kg sphere)
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