This is the constructive or destructive overlap of waves.

example: the high pitched feedback when a microphone gets too close to a speaker

If the new moon happens on january 15th, what shape will it be on february 6th?

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.

Elements that have one valence electron and are very reactive are called