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A circular loop of wire of resistance R= .500 ohms and radius r=8.00cm is in a uniform magnetic field out of the page and perpendicular to the plane of the loop. A clockwise current of I= 2.50mA is induced as the magnetic field changes. Find the rate at which the field is changing, deltaB/deltat.
How many liters of gasoline would give the same mechanical energy given that each liter provides 8.50x10^6 J of mechanical energy.
A circular loop in the plane of the paper lies in a 0.55T magnetic field pointing into the paper. If the loop's diameter changes from 20 cm to 5 cm what is the magnitude of the average induced emf.
A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when washer stands 1 m from one end.
The average resistivity of the human body (apart from surface resistance of the skin) is about 5.5 ?·m. What is the resistance between the hands if the skin resistance is negligible
A Single Turn, Square Loop A 0.408 m length of wire is formed into a single-turn, square loop in which there is a current of 14.3 A. What is the maximum torque that the loop can experience
Baseball scouts often use a radar gun to measure the speed of a pitch, What will be the increase in frequency if these waves are reflected from a 60.0mi/h fastball headed straight toward the gun
Consider three capacitors, of capacitance 2860 pF, 4570 pF, and 0.0011 ?F. what are the maximum and minimum capacitances that you can form from these
A girl swings back and forth on a swing with ropes that are 4.00m long. The maximum height she reaches is 1.50m above the ground, What is the girl's maximum speed
A proton is accelerated from rest through 500. V. It enters a magnetic field of 0.300 T oriented perpendicular to its direction of motion. determine the frequency with which it moves around this path
A light beam having a wavelength of 470. nm in air is directed into glycerine (n = 1.47). What is the frequency of the light in the glycerine
A 1200 kg car is moving with a velocity of 20 m/s when the brakes are applied uniformly, Find the braking force on the car by finding the acceleration of the car
A horizontal beam of vertically polarized light of intensity 43 W/m2 is sent through two polarizing sheets. What is the intensity of the light transmitted by the pair of sheets
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