Helppp determine if it’s speed velocity or acceleration

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.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

What determines the amount of inertia an object has