Aprojectile of mass 64 is shot from the surface of planet z with mass 4.34 x 1024 kg and radius 5.91 x 106 m by means of a very powerful cannon. if the projectile reaches a height of 3.08 x 105 m above planet z's surface, what was the speed of the projectile when it left the cannon?
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Aprojectile of mass 64 is shot from the surface of planet z with mass 4.34 x 1024 kg and radius 5.91...
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