Why are we integrating the differential x-component of the e field of this charged ring?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

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.