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One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 1.20 × 10?3 m2. The two ends of the wire are connected to a resistor. The total resistance in the circuit is 11.0 ?. If an externally applied uniform longitudinal magnetic filed in the core changes from 1.75 T in one direction to 1.75 T in the opposite direction, how much charge flows through a point in the circuit during the change?
a capacitor is connected across the terminals of an ac generator that has a frequency of 440 HZ and supplies a voltage of 24V. Find the capacitance of the second capacitor
A box of mass 275 kg slides 4.0 m down an inclined plane of 30°. Jim pushes against the box to keep it from accelerating. Calculate the magnitude of the force exerted by Jim
Magnetoencephalography (MEG) is a technique for measuring changes in the magnetic field of the brain caused by external stimuli such as touching the body or viewing images of food. what is the magnetic field at the center of the hemisphere of the ..
How much heat flows from 1.00 kg of water at 38.0°C when it is placed in contact with 1.00 kg of 20°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
A certain string on a piano is tuned to produce middle C (f1= 261.63 Hz) by carefully adjusting the tension in the string
A tractor pulls a sled of mass M = 1375 kg across level ground. The coefficient of kinetic friction between the sled and the ground is ?k = 0.605, What magnitude of tension in the rope is necessary to move the sled horizontally
A speedboat moving at 33.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of ?3.20 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) Find the total tim..
The third-order fringe of 650 nm light is observed at an angle of 17° when the light falls on two narrow slits. How far apart are the slits
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 45.9 m/s in a time of 8.93 s. Find the average net force exerted on the car and riders by the magnets
A spherical mirror is to be used to form an image, five times as tall as an object, on a screen positioned 4.2 m from the mirror. Describe the type of mirror required
A 4.00-g bullet is moving horizontally with a velocity of +355 m/s, where + sign indicates that it is moving to the right. The bullet is approching two blocks resting on a horzizonta frictionless surface.
A child and sled with the combined mass of 60.4 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 13.4 m/s at the bottom, what is the height of the hill.
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