What is the escape speed from the sun, beginning (from rest relative to the sun) at the orbit of Earth, R = 1.50 A????1 108 km. (Given: G = 6.67 A????1 10A????111 N A????1 m2/kg2; mass of the sun = 2.0 A????1 1030 kg.) (Answer: 1.3A????1 106 m/s)
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