Hel What occurs when someone places an ice pack on an injured ankle?

A. Conduction causes ice pack to lose thermal energy.

B. Conduction causes the ankle to gain thermal energy.

C. Cold from the ice pack is transferred to the ankle.

D. Heat from the ankle is transferred to the ice pack.

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.

Explain why electric current cannot exist if a current doesn't have a voltage source.

Which of the following are appropriate acceleration units?