1.si un automovil de 3000 kg se desplaza a 40 m/s su energía cinética es igual a A) 2.400.000J
B) 3.500.000J
C) 3.600.000J
D) 4.800.000J

List one type of erosion and describe how it happens?

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?