So we now have a way of calculating the kinetic energy of rotation provided that we know how to calculate the moment of inertia.
现在我们有一个计算，旋转动能的方法，如果我们知道，怎样计算转动惯量。
2
Now I want to know how much kinetic energy of rotation these objects have.
现在我想知道这些的,旋转动能是多少。
3
The dual axis rotation makes for super-clean clothes, and using the drum as a laundry basket helps users make sure that they are washing full loads rather than energy-wasting partial loads.