How much energy is released by the conversion of 4.2 x 10 kg of mass to energy? How much mass must be converted to energy to produce 1.00 J of energy?

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.