if clarisses mass on earth is 52kg what would be her weight on venus if the acceleration due to gravity on that planet is 8.87 m/s^2

The energy equivalent of the rest mass of an electron is

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?

"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third.b) increased by a factor of three.c) increased by a factor of two.d) reduced to one-half"