Which best describes the energy of a sound wave as it travels through a medium

a. it remains the same

b. It increases.

c. It depends on the medium

d. it decreases

Why is there less fore between two apples than between the earth and one apple?

Advances in technology have reduced the cost of manufacturing MP3 players. If demand does not change, A. more MP3 players will be sold at a higher price. B. fewer MP3 players will be sold at a higher price. C.

Which of the following statements about Ohm's Law is true? A. To increase the current, decrease the resistance. B. Keeping the same voltage and decreasing resistance decreases the current. C. Ohm's law relates power, current and resistance. D.

Kinetic energy problemset

What effect does increasing the current have on a solenoid?

1) What happens when two negatively charged tape strips are placed near each other?

Claudia throws a baseball to her dog. Which free-body diagram shows the baseball when it's flying horizontally in midair? (Assume no air resistance.)

What causes an air conditioned to turn on

A turntable is spinning on a frictionless axle when a ball of putty is dropped onto it from above. The putty sticks to the turntable when it lands. Is angular momentum conserved for the turntable and putty (the system) during this process?

The speedof a boat in still water is v. The boat is to make a round-trip ina river whose current travels at speed u.