Two astronauts are playing catch with a ball in space. The first astronaut throws the ball; and

5 ways to reduce friction

How are the wavelength and frequency of electromagnetic waves related to their energy

The more mass an object has the more or less potential energy it has?

A human cannon ball is fired st an angle of 60 degrees and a speed of 25 m/s. If the net is locations 35 m in front of the cannon, how high in air should the net be placed so that the performer lands in the center of it?

Let R be the distance between the cylinder and the center of the turntable. Now assume that the cylinder is moved to a new location R/2 from the center of the turntable.

How can the same material bend in one situation but break in another

According to Newton's first law of motion, what would happen to a car traveling at a constant velocity of 55 MPH to the west in the absence of an unbalanced force?

The Appalachian mountain range in the Eastern United States was once much taller than the Rocky mountain range in the Western United States.

Describe how lighting is just like you walking across a carpet and getting shocked

You need to raise a heavy block by pulling it with a massless rope. You can either (a) pull the block straight up height h, or (b) pull it up a long, frictionless plane inclined at a 15∘ angle until its height has increased by h.