Astone sphere of radius 7.00 m rests in a flat field. relative to the ground, what is the gravitational potential energy of a 90.0-kg person sitting on the very top of the sphere?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Both independent and dependent clauses

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve