You need to design an industrial turntable that is 56.0 cm in diameter and has a kinetic energy of 0.260 J when turning at 37.0 rpm (rev/min). Required:
a. What must be the moment of inertia of the turntable about the rotation axis?
b. If your workshop makes this turntable in the shape of a uniform solid disk, what must be its mass?

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system