N narges-ts New Member Joined Jan 5, 2017 Messages 12 Gender Female HSC N/A Aug 11, 2017 #1 OK so the question was like Planet A has mass M and Planet B as mass 2M is the Ep of A x2 of B or 1/2 of B?
OK so the question was like Planet A has mass M and Planet B as mass 2M is the Ep of A x2 of B or 1/2 of B?
pikachu975 Premium Member Joined May 31, 2015 Messages 2,739 Location NSW Gender Male HSC 2017 Aug 11, 2017 #2 Ea = -GMm/r Eb = -2GMm/r Ea/Eb = 1/2 So Ep of A is half
