Astone with a mass of 0.700kg is attached to one end of a string 0.600m long. the string will break if its tension exceeds 65.0n . the stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed.
find the maximum speed the stone can attain without breaking the string? m/s

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.