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1. An ac generator supplies a peak (not rms) voltage of 120.0 V at 60.0 Hz. It is connected in series with a 50.0-Ω resistor and a 0.500-H inductor. What is the rms voltage of the generator?
2. An ac generator supplies an rms (not peak) voltage of 180 V at 60.0 Hz. The generator is connected in series with a 0.50-H inductor, a 6.0-µF capacitor and a 300-? resistor. What is the average power supplied to the circuit?
Suppose you are 69 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 4.90mm.
A bicycle with wheels 48 cm in radius travels down the street with an initial speed of 7.00 m/s. What is the initial angular velocity of the wheels
A flatbed truck is carrying a load of timber which is not tied down. the mass of the timber is 800 kg, What is the highest acceleration that the truck can have without losing its load
A camera's flash uses the energy stored in a 270µF capacitor charged to 170V. The current in the charging circuit is not to exceed 23mA. What's the resistance in the charging circuit
A pump, submerged at the bottom of a well that is 34 m deep, is used to pump water uphill to the house that is 50 m above the top of the well, as shown above. All pressures are gauge pressures. Avoid the effects of friction, turbulence, and viscosity..
A positron is a particle of "antimatter"; it has the same mass as an electron (9e-31 kg), but its charge is positive instead of negative. At research facilities such as Cornell Electron Positron Storage Ring at Cornell University in New York, high..
A hand grenade is thrown with a speed of v0 30 m/s, and a 60 degree angle with x-axis, just prior to exploding. It breaks into two pieces of equal mass after the explosion. One piece has a final velocity of 40 m/s along x. Find the velocity of t..
What is error in the simple pendulum approximation
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This means that the masses of two stars are equal. Suppose the orbital speed of each star is 285 km/s and the orbital period of each..
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, and hits the ground one second after that. how tall is the building? how fast did the ball strike the ground?
A farsighted person has a near point of 50-cm from her eyes. She wants glasses that would let her see objects at a distance of only 25.00 cm from her eyes. Determine out the focal length of the glasses needed if the glasses are 2 cm and 3 cm from ..
Two sinusoidal waves of the same period, with amplitudes of 5.5 and 7.5 mm, travel in the same direction along a stretched string; they produce a resultant wave with an amplitude of 12.760 mm. The phase constant of the 5.5 mm wave is 0. What is th..
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