1.

What would be the energy (in joules) required to launch a rocket of mass 500 kg into free space from earth? (use g = 10m/s2 and Radius of earth = 6400 km)

A. 3.2 × 1010
B. 6.4 × 1010
C. 12.8 × 1010
D. 1.6 × 1010
Answer» B. 6.4 × 1010


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