Em um dia de treino, um jogador chuta uma bola de futebol de 400g. A bola, inicialmente parada, adquire uma velocidade de 30 m/s. Determine o tempo de contato do pé do jogador considerando que a força sobre a bola tem intensidade de 600 N.

What are the three ways that an object can accelerate

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer