You pull a rope with a force F agajnst your friend in tug of war in which he pulls also with a force of magnitude F. what is the tension on the rope? A) equal to F

B) Half of F

C) twice the magnitude of F

D) 1.5 times the magnitude of F

E) none of the above

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

Which atomic model is missing from this set

The potential energy for a mass on a spring is proportional to the square of which of these quantities? a. mass b. frequency c. period d. displacement e. velocity