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a)What is the gravitational field strength at the surface of Ceres? DONE 0.15 N kg to the power of -1

b)What is the gravitational potential at the surface of Ceres?DONE 85 kilo J kg to the power of -1

c)What is the minimum escape velocity from the surface?DONE 410 m s to the power of -1

__d)What is the minimum energy required to escape from Ceres?__i do not know this part. Could I use a formulae of Kinetik energy? Please help me.