Calculate the acceleration of gravity on the surface of the following worlds. How much would you weigh, in pounds, on each of the following worlds? A. Mars (mass 0.11 M_Earth) (radius 0.53 R_Earth) B. Venus (mass 0.82 M_Earth) (radius 0.95 R_Earth) C. Jupiter (mass 317.8 M_Earth) (radius 11.2 R_Earth)