A beam of protons is moving toward a target in a particle accelerator. This beam constitutes a current whose value is 0.45 A. (a) How many protons strike the target in 20 seconds

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is