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{"ops":[{"insert":"Scientists are developing a new space cannon to shoot objects from the surface of the Earth directly into a low orbit around the Earth. For testing purposes, a projectile is fired with an initial velocity of 2.8 km\/s vertically into the sky. Calculate the height that the projectile reaches, ...(a) assuming a constant gravitational deceleration of 9.81 m\/s2.(b) considering the change of the gravitational force with height.Note: Neglect the air resistance for this problem. Use 6.67\u00d710\u221211m3kg\u22121s\u22122for the gravitational constant, 6371 km for the Earth\u2019s radius, and 5.97\u00d71024kg for the Earth\u2019s mass.\n"}]}
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