The Air Force has been flying 31 GPS satellites in Mid Earth orbits at an altitude of 20,200 km. Use the same steps, and show the same complete calculations with units, to find the tangential velocity, centripetal
acceleration, and centripetal force if one satellite's mass is 1660 kg and has a period of 12 hours.
Remember to add the radius of the Earth to the altitude above the Earth.

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

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.