1.

Energy required to move body of mass m from an orbir of radius 2R to 3R is

Answer»

ENERGY required=change in POTENTIAL energy of the system

del U=Uf-Ui

Uf=-GMm/3R

Ui=-GMm/2R

del U=Uf-Ui

=-GmM/R(1/3-1/2)

=-GMm/R(-1/6)

=GMm/6R

hope this HELPS



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