In a practical machine, the power output is the power input.

Asmall blob of putty of mass m falls from the ceiling and lands on the outer rim of a turntable of radius r and moment of inertia i0 that is rotating freely with angular speed ω0 about its vertical fixed-symmetry axis. (use any variable or symbol stated above as necessary.)

State the right hand rule of the direction of magnetic field in a conductor carrying current

In physics the desire of an object to keep doing what it is doing is termed?