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A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 410, and it delivers 500 mA (the secondary current) at an output voltage of 5.8 V (rms).
(a) Find the current in the primary.
mA
(b) Find the number of turns in the secondary.
turns
He wants to row directly across a river 252 wide with a constant of 1.33 m/s. Illustrate what direction should he aim his boat, and low long will it take him to cross the river
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