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A magnet and coil are oriented as shown in figure 25.50.The magnet is moved rapidly into the coil, heldstationary in the coil for a short time, and then rapidly pulledback out of the coil. Sketch a graph showing the reading of the ammeter as a function of time. The ammeter registers a positivevalue of current when current goes into the "+" terminal.
an electric-generator turbine spins at 3800 rpm. friction is so small that it takes the turbine 23.0 min to coast to a
In order to pass a physical fitness test, Marcella must run 1000 m at an average speed of 3.90 m/s. How much time does she have to run the last 750 m
A 110 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.0760 m/s
An electron is placed in a region with a constant, uniform electric field pointing in the positive x direction. In what direction is the electric force on the electron
A 56.0 kg ice skater spins about a vertical axis by her body with her arms horizontally outstretched, making 1.50 turns each second. The distance from one hand to the other is 1.5 m . Biometric measurements indicate that each hand typically makes ..
Hooke's Law states that the force needed to stretch a spring is proportional to the amount the spring is stretched. If 10.0 N of force stretches a spring 4.00cm
An ideal gas is enclosed in a cylinder with a movable piston on topof it. The piston has a mass of 8000 g and an area of 5.00cm2 and is free to slide up and down, keeping the pressure of the gas constant.
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge. Which point is at the higher potential
A glass sheet 1.10 ?m thick is suspended in air. Calculate the minimum value of the index of refraction of the glass sheet that produces this effect
A 0.600 kg ball falls directly down onto concrete, hitting it with a speed of 13.5 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
A horizontal wire of 0.52 m carrying a current of 8.2 A is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
In a double-slit experiment using monochromatic light, a screen is placed 1.20m away from the slits, which have a separation distance of 0.0280mm. Find the position of the second-order maximum
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