Potassium is a solid phase of potassium still unknown to science. The only difference between it and ordinary potassium is that Potassium forms a crystal with an fcc unit cell and a lattice constant . Calculate the density of Potassium . Round your answer to significant digits.

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.