Asolid disk has a mass of 162 kg and a radius of 1.30m. this
disk rotates about an axis through its center, like acompact discl
and has an angulaar speed of 18.0 rad/s. if allthe kinetic energy
of this disk were used to lift a 3.00 kg block, how high could the
block be lifted?

754.3 m

Explanation:

The moment of inertia of the solid disk:

Where m is the disk mass and R is the radius of the disk.

The angular kinetic energy of the disk is then:

By law of energy conservation, this energy is converted to potential energy to pick up the 3kg block

let g = 9.8 m/s2

where = 3 kg is the mass of block

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6