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An AC generator has 70 rectangular loops on its armature. Each loopis 15 cm long and 8 cm wide. The armature rotates at 1500 rpm aboutan axis parallel to the long side. If the loop rotates in a uniformmagnetic field of 0.9 T, which is perpendicular to the axis of rotation, what will be the maximum output voltage of this generator?
suppose you take a 2.0times102 ohm resistor and a 0.40 h inductor and make a series circuit with a voltage source that
A swimmer in a relay race has a 0.50 s. lead and is swimming at aconstant speed of 4 m/s. What constant speed must the second swimmer have
A soccer player kicks the ball off the ground at an angle ? above the horizontal. The ball is in the air for 3.0 seconds, Find the soccer ball's initial horizontal (vox) velocity component
What is the rotational kinetic energy of the Earth? Use the moment of inertia you calculated in Part A rather than the actual moment of inertia given in Part B.
A stonewith a mass of 2.40-kg is released from rest and falls toward Earth (near the surface of the Earth). Use the impulse-momentum theorem to compute its momentum after falling for 4.00 seconds.
A 4.2 kg block of ice slides down a plane with an incline of34 degrees. assuming friction is negligible, what is the acceleration of the block down the incline
A liquid fueled rocket is red on a test stand. The rocket nozzle has an exit diameter of 30 cm, find the temperature of the gases at the nozzle exit plane
A harmonic wave in a wire has amplitude 7.07 mm, wavelength 2.61 m, and frequency 254 Hz. What is the propagation speed of the wave
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 3.0 in. of rain in 30 min on a town of area 30 km2. What vo..
A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A man pushes a wooden crate on wooden floor. The direction of the force is 30o from the horizontal. How much force does he use in order to maintain a constant speed
At a point near the equator, the Earth's magnetic field is horizontal and points to the north. If an electron is moving vertically upward at this point, does the magnetic force acting on it point north, south, east, west, upward, or downward?
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