A toy rocket that weighs 10 N blasts straight up from ground level with an initial kinetic energy of 40 J. At the exact top of its trajectory, its total mechanical energy is 140 J
To what vertical height above the ground does it rise, assuming no air resistance?
A) 10 m B) 24 m C) 1.0 m D) 14 m
A
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An infinite universe is one of the assumptions of the cosmological principle
Indicate whether the statement is true or false
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