A65-kg person walks from the ground to the roof of a 100 m tall building. how much gravitational potential energy does she have at the top of the building?

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Avalue that describes how heavy an object is and is related to the force of gravity is

Write down two additional questions about earth's magnetic field that will make your presentation more informative.