ll motor draws 120 J of electrical energy from the mains to lift a book of mass 1 kg through a vertical distance of 8.0 m. It takes 5 s to do this. Calculate: (a) the power input to the motor; (b) the work done by the motor in lifting the book;  (c) the fraction of the input power that is wasted

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A: The current in the loop at 0.00600s is 3.8×10−5AExplanation:Step 1:Diameter outside the loop is…

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A: a.   0.303 s b.   1.212 m c.   2.9694 m/s d.   4.982 m/sExplanation:

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Q: Please don't provide handwritten solution ...

A: Fc​=103.956i−21.3605j+1496kExplanation:The force on the first rope is F1​=105 NThe force on the…

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Q: Two point charges are placed on the x-axis as follows: charge q1 = 3.96 nC is located at x = 0.201…

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Q: 1) A white bomb made of a composition of TNT and RDX with a mass of 1.2-kg moving along the x-axis…

A: a) 30.96o b) 0.87 m/sExplanation:

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Q: A brand new semi truck is traveling down the road at 65 mph (29 m/s) going North. A strong gust of…

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Q: The slide generator in the figure below is in a uniform magnetic field of magnitude 0.0500 T. The…

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Q: Two infinitely long, straight wires are parallel and separated by a distance of one meter. They…

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A: 1.0981 mExplanation:

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Q: A technician has a 27.0 μH inductor, a 27.0 uF capacitor, and a variable frequency AC source.…

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Q: Two planets were discovered after the life of Newton. The orbital semi - major axis of the planet…

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A: Current measured: 2.793A  Voltage measured: 66.468 VExplanation:

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.