14-174 Example 2 A cell of ftafist and internal
resistance
9 S
asm is conneded in series with
an amnele
of resistance osor and a resistor
resistance for and 0-3 A coher the resistance
is changed to 3r, the internal resistance of the cellist​

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db

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.

You can melt ice by applying pressure because the solid/liquid line has a slope.