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EXERCISE 25
(a) What is Earth's gravitational acceleration on an object on its surface? Remember that the mass of Earth is approximately 5.98 * 10^24 kg, and its radius is approximately 6.38 * 10^6 m. (b) What is the Sun's gravitational acceleration on Earth? Remember that the distance between Earth and the Sun is one astronomical unit (1.5 * 10^11 m), and that the mass of the Sun is approximately 2.0 * 10^30 kg. |