Evaporation only occurs at the surface of a liquid. true or false.

Which countries produce the most greenhouse gas emissions?

What is the kinetic energy of a 0.50 kg ball traveling at 120 m/s

Suppose a moving object has kinetic energy and then comes to rest. What describes the change in its kinetic energy? A. It would remain constant. B. It would double. C. It would decrease by half. D. It would become zero.

When coal is burned energy is being converted to. energy

A roller coaster needs to climb a tall hill. How tall of a hill can it climb with an initial speed of 15 m. s.

An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.0 m/s and decelerates at a rate of 0.150 m/s^2 as it goes through.

A small metal bar, whose initial temperature was 30° C, is dropped into a large container of boiling water.

A motorcycle with mass 100kg can accelerate from 0-60mph (0-26.8m/s) in 2.8s. What is the force of the motor and what is the power if this acceleration can occur in 37.52m?

A 3,00 kg truck moving at + 10 m/s hits a 1,000 kg parked car in which moves off at + 15 m/s what is the velocity of the truck

Joe noted that the temperature in his aquarium dropped overnight. He concluded that thermal energy moved from the aquarium to the air around it. Does this validate or invalidate the Law of Conservation of energy?