The value of G was found by:
Correct answer: A. Cavendish
- A. Cavendish
- B. Newton
- C. Michelson
- D. Watt
Explanation
The value of the gravitational constant G was determined by the physicist Henry Cavendish through his famous Cavendish experiment, which he conducted in 1797-1798.
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Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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