If you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves

A ball is thrown horizontally at 20 m/s from the top of a cliff 50 meters high. how far from the base of the cliff does the ball strike the ground?

If the forces acting upon an object are balanced, then an object MUST A. be beginning to slow down. B. be accelerating. C. be moving. D. be moving at a constant velocity.

What can you use to test tread wear on your tires

In a chemical equation, where do the reactants appear?

The pressure on a gas at - 62◦c is doubled, but its volume is held constant. what will the final temperature be in degrees celsius? answer in units of ◦c.

In a perfectly inelastic collision, the total momentum of the system ___ (i) ___ constant, while the total kinetic energy of the system___ (ii) ___constant.

What factors determine power

Superman, with a mass of 150kg, goes into outer space to push a 125000kg alien spaceship out of stationary orbit. He uses his super strength and pushes the ship away ay at speed of 150m/s. What is the speed of Superman after his big push

Most telephone cables are made of copper wire of either 24 or 26 gauge. If the resistance of 24-gauge wire is 137 Ω/mile and the resistance of 26-gauge wire is 220 Ω/mile, what is the ratio of the diameter of 24-gauge wire to that of 26-gauge wire?

Classify the sentences based on whether they describe temperature or thermal energy.