H2P-525
Field strength of a point mass
H2 Physics · JC 2 · Easy · Field strength of a point mass
At a point P above the surface of a planet, the gravitational potential is . At a point Q twice as far from the planet’s centre, what is the gravitational potential? Assume the planet is isolated.
- -4.0×10⁶ J kg⁻¹
- -2.0×10⁶ J kg⁻¹
- -1.0×10⁶ J kg⁻¹
- -5.0×10⁵ J kg⁻¹
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