To figure out what you weigh on the surface of the Moon (how much gravity there pulls you downward), you need to know
A) just the mass of the Moon
B) just the distance from the Moon's center to its surface
C) just the size of the Moon's orbit around the Earth (its semi-major axis, say)
D) which part of its orbit the Moon is in
E) two of the above factors
3)4 Orbits in the Solar System

Question

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The Answer of To figure out what you weigh on the surface of the Moon (how much gravity there pulls you downward), you need to know
A) just the mass of the Moon
B) just the distance from the Moon's center to its surface
C) just the size of the Moon's orbit around the Earth (its semi-major axis, say)
D) which part of its orbit the Moon is in
E) two of the above factors
3)4 Orbits in the Solar System

To Figure Out What You Weigh on the Surface of the Moon