Why do you think the moon appears to change shape as it revolves around the earth?

What volume is occupied by 2.35 moles of he at 25 degree c and a pressure of 0.980 atm?

You are making raised beds for a productive vegetable garden and have 4 boxes that are 1m x 2m x 1m deep. What volume of dirt (in cubic meters) will you need? How many cubic feet is that?

Two sets of Christmas lights are available. For set A, when one bulb is removed, the remaining bulbs remain illuminated. For set B, when one bulb is removed, the remaining bulbs do not operate. Explain the difference in wiring for the two sets.

A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 2.0 cm and accelerates at the rate of 7.

In your own words, explain why sound waves cannot travel in space.

Which of the following statements is true regarding the use of refrigerants? a. if your equipment is recovery only, refrigerant that is removed from vehicles should be poured down the drain b.

When would the velocity of a wave traveling in a medium change? A - only if a property of the wave changes B - only if a property of the medium changes C - if a property of both the wave and the medium changes D - never

If the moon did not have an atmosphere what would happen to it

a 2.0 kg mass moving to the east at a speed of 4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0 kg mass. how much kinetic energy is lost during

How did people years ago find out which side of a magnet was north and which was south?