Which one of the following statements best explains why the P‑wave of an earthquake arrives at a seismic station before the S‑wave? A) The P‑wave originates from the earthquake epicenter. B) The S‑wave originates from the earthquake focus. C) The P‑wave has a greater velocity than the S‑wave. D) The S‑wave decreases in velocity as it passes through a liquid.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Which object is most likely represented by a dot?

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely