If B vectos, is added A vectos under a what condition does the resultont vectos have a
magnitude equal to the A+B?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

What are some properties of transverse waves?

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