Q20. two objects have the same total mass, but object a has its mass concentrated closer to the axis of rotation than object
b. which object will be easier to set into rotational motion? explain.

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

In science and physics what is the standard unit of measure for speed?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.