Which of the following is not a practical application of gravity?
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A. It keeps the moon in orbit around Earth.
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B. The moon has no gravity because it has no atmosphere.
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C. It keeps the galaxies from flying apart.
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D. It keeps Earth in orbit around the sun.

Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these

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.

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.