Compressions and ralefactions are parts of longitudinal waves.
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There are three major kinds of power supplies: unregulated (also called brute force), linear regulated, and switching. The fourth type of power supply circuit called the ripple-regulated, is a hybrid between the “brute force” and “switching” designs, and merits a subsection to itself.
Someone as dead would be pretty much deceased, gone y'know.... dead
According to Ohm's law for a portion of the circuit we have:
U=RI=>I=U/R=9/4=2.25 A
The pitch is important because of how low or high or how loud would it be. the frequency of the sound for human ear.
