Physics Rotational Mechanics Level: Misc Level

1. A flywheel has E= 900000 J radius =.5 m voiume=3.3765 m^3 density=7x10^3kg /m^3 Due to its radius and the material (steel) of the flywheel, the maximum angular velocity W max is 3000 revolutions per minute (rpm). Assuming that the flywheel has a 100% efficency, what is the maximum kinetic energy that can be stored in this flywheel)?