An automobile use a 75,000 J of chemical energy from Gosselin produce 10,000 J of useful output energy

A. calculator it's efficiency

B. where does the lost energy go, that part of the input work that doesn't become useful work?

Chlorophyll is a plant pigment that absorbs all frequencies of light except for Blue Yellow Red Green

Think about a child swinging on a swing set. She isn't pumping her legs, just swinging freely. Where is she moving fastest?

A student standing on a roof throws a ball toward the sky. He then tries to make an energy transfer diagram for the ball. What should go in the blank in the diagram? A) Heat energy B) Light energy C) Useful energy D) Electrical energy

A group of cells that grow very fast

A world war ii bomber flies horizontally over level terrain, with a speed of 273 m/s relative to the ground and at an altitude of 3.27 km. the bombardier releases one bomb. (a) how far does the bomb travel horizontally between its

Charge 1 is - 30 μC, charge 2 is 5 μC, the distance between the charges is 8 cm, and they are located in a vacuum. If the third charge of 3 μC would be placed into position B, i. e.

For water vapor to turn back i to a liquid what do you do to it's temperature

How long will it take a car that is moving at 60 miles per hour to travel 120 miles?

Calculate the force required to give 380kg car an acceleration 10m/s square

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is 340 m/s, how high is the cliff?