When you hold a piece of chocolate in ypur hand, why does the chocolate melt?

Who has the most power? athlete A (bench presses 100 kg over 0.6 m in 0.5 s) athlete B (bench presses 150 kg over 0.6 m in 1.0 s) athlete C (bench presses 200 kg over 0.6 m in 2.0 s) athlete D (bench presses 250 kg over 0.6 m in 2.5 s)

The air speed of a plane is defined as its velocity with respect to the surrounding air, or in other words how fast the plane would move in still air. The ground speed is the speed of the plane as measured from the ground.

Reptiles breathe through their skin. a. true b. false

The block moves up an incline with constant speed. what is the total work wtotal done on the block by all forces as the block moves a distance l = 3.

What happens to the particles in a substance during a physical chance

What does sound travel throu better

How does a change in resistance affect the conductivity of a material? A) The lower the resistance, the worse the conductivity B) The lower the resistance, the better the conductivity C) The higher the resistance, the better the conductivity D) The

Two railroad cars, each of mass 6500 kg and traveling 80 km/h in opposite directions, collide head-on and come to rest. how much thermal energy is produced in this collision?

What is a result of using a machine?

A boy rides motorbike with velocity of 20 m/s He accelerates his motorbike to a velocity of 30 m/s for 5 second. Calculate the acceleration produced in the motorbike. [Ams 2ms