Suppose a 12,500-kg spaceship left Earth at a speed of
Chapter 7, Problem 71GP(choose chapter or problem)
Suppose a \(12,500-\mathrm{kg}\) spaceship left Earth at a speed of \(0.99 \mathrm{c}\). What is the spaceship's kinetic energy? Compare with the total U.S. annual energy consumption (about \(10^{20} \mathrm{~J}\) ).
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