(I) The escape velocity from planet A is double that
Chapter , Problem 47(choose chapter or problem)
(I) The escape velocity from planet A is double that forplanet B. The two planets have the same mass. What is theratio of their radii, rA/rB?(II) Show that Eq. 8-16 for gravitational potential energyreduces to Eq. 8-2, A U = mg(y2 yi), for objects nearthe surface of the Earth.
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