Three cables pull on the pipe such that they create a resultant force having a magnitude of 900 lb. if two of the cables are subjected to known forces, determine the angle θ of the third cable so that the magnitude of force f in this cable is a minimum. all forces lie in the x–y plane. what is the magnitude of f?

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.