If a hockey puck slides on a perfectly frictionless surface, it will

eventually slow down because of its inertia.

A red car with a mass of 3.0 kg traveling at 8 m/s collided with a blue car with a mass of 2.0 kg, which is at rest. The velocity of the blue car after the elastic collision is 9.6 m/s. What is the velocity of the red car?

A large jet flying overhead is low enough so that a man on the ground can hear its engines. The man sees the jet before he hears the engines because A) his sight is stronger than his hearing. B) his hearing is stronger than his sight.

Which is a freshwater region characterized as a large standing body of water? A. lake B. river C. ocean D. stream

On a frictionless air track, cart A hits cart B moving at a velocity of 2 meters per second to the right. Which answer predicts what will happen?

You push your little sister on a swing and in 1.6 minutes you make 52 pushes what is the frequency of your swing? answer in units of Hz

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.