What is a combination of two or more simple machines? a complicated machine, a compound machine, a compiled machine, a converted machine.

When a tennis ball is thrown against a wall it appears to bounce back with exactly the same speed as it struck the wall. Is momentum conserved for this collision? Explain!

The correct notation for an alpha particle

Which type of reaction releases the most energy? nuclear chemical physical

The 20 or so minerals that make up most of the rocks of earth's crust are know as what

Which is the correct order of events in the water cycle?

What is a transverse wave

Object moving at a constant velocity will always have a

Who would most likely agree that a child learns certain behaviors from observing other people?

A bullet is fired horizontally from a height of 78.4 m and hits the ground 2400 m away. With what velocity does the bullet leave the gun?

Select the correct answer. Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased? O A. The charge on B decreases. OB. The charge on B increases. OC.