A 25.0-lb child is standing on the edge of a merry-go-round whose radius is 33.0 inches. The marry-go-round spins, completing 38 complete rotations every minute. What is the child’s weight (in the sense of the force of gravity acting on him?

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.