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A solenoid has a cross-sectional area of 7.0 x 10-4 m2, consists of 430 turns per meter, and carries a current of 0.52 A. A 13-turn coil is wrapped tightly around the circumference of the solenoid. The ends of the coil are connected to a 1.6- resistor. Suddenly, a switch is opened, and the current in the solenoid dies to zero in a time of 0.062 s. Find the average current induced in the coil.
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22 m/s at an angle 63 degrees, What is the distance between the two girls
A jeweler working with a heated 43 gram gold ring must lower the ring's temperature t make it safe to handle. If the ring is initially at 94 degrees Celsius, what mass of water at 22 degrees Celsius is necessary to lower the ring's temperature to 38 ..
Consider an electron in a hydrogen atom, which is 0.050 nm from the proton in the nucleus, What electric field does the electron experience
A 4 kg blue ball moves to the right at 6 m/s. A 3 kg red ball moves to the left at 7 m/s. How fast and in what direction is the red ball moving
Two equally charged insulating balls each weigh 0.50 g and hang from a common point by identical threads 30 cm long, What is the magnitude of the charge on each ball
In a certain time, light travels 5.11 km in a vacuum. During the same time, light travels only 2.54 km in a liquid. What is the refractive index of the liquid
A lens which is 40.0 cm from an object forms an image of the object on a card 20.0 cm away. Determine what is the focal length of the lens? If the height of the image is .75 cm, what is the height of the object?
The energy provided each hour by heat to the turbine in an electric power plant is 9.5 x 10^12 J. If 6.5 x 10^12 J of energy is exhausted each hour from the engine as heat
A 20.0-kg mass is supported by two strings as shown in Fig. 12-4. The left string is 2.00 m long and the right string is 5.00 m long. What is the tension in the right side string
A pendulum has a length L = 1.11m. It hangs straight down in a jet plane about to take off as shown by the dotted line, Calculate the magnitude of the plane's acceleration
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
You have a thin rod of length 20cm which has a charge density that varies with position on the rod. In fact it is given by 3x, where x is in meters. Determine the net charge on the rod
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