What happens to the speed of light as it enters a different medium

John is in need of a large amount of current in order to run his machine but he is not able to increase the current. What advice would you give to John to increase the current?

What energy transfer happens when you cook a sausage on a camp fire thats burning wood

Wind erosion can be reduced by

You apply the brakes of your car abruptly and your book starts sliding off the front seat. Three observers explain thisdifferently. Observer A says that the book continued moving and the car accelerated from underneath it.

Stacy measures two quantities: the mass of each washer and the force that the washers exert on the force meter. In general, how will the force change as she adds more washers to the meter?

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?

Why is thebsun so bright and hot?