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Someone decides to produce electrical power by turning a coil with 10^5 circular loops in the Earth's magnetic field. The loops are oriented so that during their rotation the plane of the loop is perpendicular to the magnetic field and are rotated at 120 Hz. The magnetic field of the Earth at that location is 0.3 G and the loops have a radius of 25 cm.
(a) What is the peak current that flow in a circuit connected to this generator? The circuit has a net resistance of 1500 ohms.
(b) Using the information from lab # relating peak and average current, determine the average power obtained from this device?
An electron is placed in a uniform electric field of strength 210 N/C. If the electron is at rest at the origin of a coordinate system at t = 0 and the electric field is in the positive x-direction
A thin film of oil (n = 1.27) is located on smooth, wet pavement. When viewed perpendicular to the pavement, How thick is the oil film
Two large, flat conducting plates lie parallel to the x-y plane. They carry equal currents, one in the +x and the other in the -x direction, Find the magnetic field strength outside the plates.
) On a horizontal frictionless surface, a block of mass M is sliding along on constant velocity v. A block of mass m lands on top of the original block. What is the velocity of the new system
A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..
How many moles of gas are in a balloon with a volume of 5.07 liters at a temperature of 298 K and a pressure of 1.11 atm
A communications satellite with a mass of 430 is in a circular orbit about the Earth. Calculate the gravitational force exerted on the satellite by the Earth when it is in orbit
A cylindrical rod with a diameter of 2.54 cm and a length of 76.2 cm is initially at a temperature of 20.0 C. Next, After reaching equilibrium, what is the volume of the rod
Two adjacent natural frequencies of an organ pipe are found to be 450 Hz and 495 Hz. What is the length of the pipe
A 160-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest? ________rad/s
In some Rutherford scattering experiments, the alpha particles had kinetic energies of 7.7MeV
A small mailbag is released from a helicopter that is descending steadily at 2.71 m/s. How far is it below the helicopter
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