The asteroid Ceres has a mass of 7 1020 kg and a radius of 500 km What is g on the surface of Ceres?

g=GM/r2 N m2/kg2

G=6.672x10-11

M=7*1020kg

r= 500,000 m

g=1.8x10-1 m/s2

about 0.02 g

10*1015power of 45