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A long, straight wire carries a current I1=3.5 A and is distance h=15 cm from a rectangular current loop that carries a current I2=1.5 A. (a) if the loop has a length L= 45 cm and a width w=20 cm, what are the magnitude and direction of the force exerted by the wire on the loop? (b) what is the force exerted but the current loop on the wire?
A hypothetical charged particle passes without deflection through crossed electric and magnetic fields of strengths 6940 V/m and 0.125 T, respectively. What is the particle's charge-to-mass ratio
Consider a bird that flies at an average speed of 10.7 m/s and releases energy from its body fat reserves at an average rate of 3.70 W, How far will the bird fly before feeding again
There is a function generator driving a series RC circuit. The function generator provides an AC current of I(t) = Io sin(2? f t), What is the reactance of the capacitor
A heat engine produces 9440 J. of heat while performing 2340 J. of useful work. What is the percent efficiency of this engine
An electron has an initial velocity of 5.00 106 m/s in a uniform 9.00 105 N/C strength electric field. How long does it take the electron to come to rest
N identical resistors are connected in series. The resistance of one of them is equal to R. What is the equivalent resistance of all resistors
An ideal gas is compressed from a volume of 400 cm^3 to a volume of 150 cm^3 slowly and isothermally in a piston-cylinder system. If the final pressure is 100 kPa, determine a) the work done on the gas and b) the heat transfer (specify whether the..
A 0.20-kg baseball is dropped and reaches a speed of 1.0 m/s just before it hits the ground. What is the change in the ball's momentum
A student sits on a stool that is free to rotate about a vertical axis. He holds his arms extended horizontally with a 4.0-kg dumbbell in each hand. Find the final angular speed of the student
A toy car runs off a table and lands 3 metersaway from the edge of the table. If the table is 0.8 metershigh, Calculate the time of flight of the toy car
A photon having E = 25.7 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
a hydrogen atom that has lost its electron is moving in the y direction in a region where the magnetic field is
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