Consider two planets a and b. the mass of planet b is 0.012 times the mass of planet a and its radius is 0.3 times the radius of planet a. if the acceleration due to gravity at the planet a is 10 m/s2 , calculate the corresponding value at planet b.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Often called simply "velocity," this is the velocity of an object at a particular moment in time.