Mass m is raised to a vertical height h above the ground and then released. After the mass has fallen three-fourths of the way to the ground, its kinetic energy will be? a. (mgh)/4 b. (3mgh)/4 c. mgh d. (4mgh)/3

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

You need to fill a basketball with air to play with it. you know that your pump expels air at a velocity of 6 cm/s. you know that the volume flow rate of air being pumped into the basketball is 103 cm^3/s. what is the diameter of your needle?

How do you calculate the gravitational force on a rubber ball which has a mass of 50g