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qid 10337 · physics
Question: The mass of Earth is 5.97x10^24 kg, the mass of the Moon is 7.35x10^22 kg, and the mean distance of the Moon from the center of Earth is 3.84x105 km. The magnitude of the gravitational force exerted by Earth on the Moon is X * 10^20 N. What is X? Return a numeric value.
- 1.92
- 2.00
- 2.10
- 1.85
- 1.80
- 2.15
- 1.99
- 1.75
- 2.08
- 2.05
Our answer: G. 1.99 Source quote machine-checked (exact quote)
How it was answered
Multi-step solver (maze), replayed by code
Current source
OpenStax, University Physics Volume 1, Section 13.1 "Newton's Law of Universal Gravitation"
“He could explain this by postulating that a force exists between any two objects, whose magnitude is given by the product of the two masses divided by the square of the distance between them.”
Source quote machine-checked (exact quote)
Earlier version (superseded)
Source weak (http_get_200_text_and_question_terms)
Earlier version (superseded)
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