H2P-536
Gravitational field and potential gradient
H2 Physics · JC 2 · Medium · Gravitational field and potential gradient
At a point P above the Earth, the gravitational potential is -2.0 × 10 J kg. At another point Q further away, the potential is -1.2 × 10 J kg. What is the work done by an external agent in moving a 0.50 kg mass from P to Q?
- 4.0 × 10 J
- -4.0 × 10 J
- 1.6 × 10 J
- -1.6 × 10 J
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