What is required to bring about phase change?

Explain how an electrical current is produced.

A car start from rest and move 6km due east and 8km due south. Calculate the distance covered

Which takes place as water cycles from the bottom of the pot toward the top? A. Thermal energy is transferred. B. Water molecules gain kinetic energy. C. Chemical energy is transferred. D. Water molecules gain thermal energy.

If a North pole and a South pole cross what will the results be?

Will the tv remote still work if you put a piece of newspaper in front of the sensor?

A student throws a 5.0-newton ball straight up. What is the net force on the ball at its maximum height? (1) 0.0 N (3) 5.0 N, down (2) 5.0 N, up (4) 9.8 N, down

An object starts from rest and falls freely for 40. meters near the surface of planet P. If the time of fall is 4.0 seconds, what is the magnitude of the acceleration due to gravity on planet P?

Consider two metallic rods mounted on insulated supports. One is neutral, another positively charged. The charged rod is brought close to the neutral one (no touching!

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith

1. work is a transfer of 2. a small 20-killogram canoe is floating downriver at a speed of 2 m/s. what is the caanoes kinetic energy?