Asatellite orbiting earth once per day. from the reference frame of the moon, which orbit earth once about every 27 days, what is its motion?

a. the satellite never moves relative to the moon
b. the satellite travels continuously away from the moon.
c. the satellite remains at a constant distance from the moon.
d. the satellite continuously move closer and farther away from the mood.

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 is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly

How can you increase the strength of an electromagnet?