Scientists have observed earths tectonic plates move in predictable directions. what is the cause of this observation? a. uniform pressure inside earths forces the plates to move. b. uniform temperature inside earth forces the plates move. c. variations in temperatures inside earth forces plates to move. d. vibrations in the core forces the plates to move.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

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.