A current of 0.2 A flows through an electric bell having a resistance of 65 ohms. What must be the applied voltage in the circuit?

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

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.

Ascience teacher heated liquid ethanol for an experiment. when he turned up the temperature, the ethanol quickly disappeared, and a strong aroma filled the room. what happened to the ethanol?