Energy transformed into internal energy = decrease in total mechanical energy
= initial (KE+PE) - final (KE+PE)
= (GMm/2r - GMm/r) - (0.5mv^2 - GMm/R) where r is initial radius of orbit,R id radius of Earth
= -GMm/2r - 0.5mv^2 +GMm/R
= -6.67e-11*5.972e24*575/(2*(575e3+6371e3)) -0.5*575*1900^2 + 6.67e-11*5.972e24*575/6371e3
= 1.8425*10^10 J answer
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