Based on the data in the table, what will happen when a sound wave travels from copper into aluminum?

A. The wave will slow down.
B. The wave will speed up.
C. The wave will change in frequency,
D. The wave will get completely absorbed.

Three archers each fire four arrows at a target. joe’s four arrows hit at points 10 cm above, 10 cm below, 10 cm to the left, and 10 cm to the right of the center of the target. all four of moe’s arrows hit within 1 cm of a point 20 cm from the center, and flo’s four arrows hit within 1 cm of the center. the contest judge says that one of the archers is precise but not accurate, another archer is accurate but not precise, and the third archer is both accurate and precise. which description applies to which archer? explain

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? ?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.