Jan and len throw identical rocks off a tall building at the same time. the ground near the building is flat. jan throws her rock straight downward. len throws his rock downward and outward such that the angle between the initial velocity of the rock and the horizon is 30°. len throws the rock with a speed twice that of jan's rock. if air resistance is negligible, which rock hits the ground first?

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.