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A 40 mH inductor with 3.5 resistance is connected in series to a 20 µF capacitor and a 60 Hz, 40-V (rms) source. Calculate the following value.
(a) rms current
(b) phase angle
(c) power dissipated in this circuit
q1. an iron bolt of mass 65.0 g hangs from a string 32.0 cm long. the top end of the string is fixed. without touching
During winter, a baseball player works out with a 50-kgpitching machine. The ground is covered with a thin layer of ice, What is the recoil velocity of the machone
A parallel-plate capacitor in air has a plate separation of1.37 cm and a plate area of 25.0cm2. The plates are charged to a potential difference of268 V and disconnected from thesource. The capacitor is then immersed in distilled water. Assumethat..
A velodrome is built for use in the Olympics. The radius of curvature of the surface is 20.1 m. At what angle should the surface be banked
The function y(x, t) = (25.0 cm) cos(?x - 20?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant when that point has the displacement y = +22.0 cm?
the note middle c on a piano has a frequency of 512 hz in the fundamental tone. suppose that the string that produces
A one-meter-long glass tube is sealed at one end. How far from the midpoint will the mercury be when the closed end of the tube is immersed in boiling water
How much power is needed to push a 85kg chest at 0.72m/s along a horizontal floor where the coefficient of friction is 0.76
Consider the long, straight, current-carrying wires shown in the figure. One wire carries a current of 9.5 A in the negative y direction; the other wire carries a current of 4.5 A in the positive x direction
Suppose one gallon of gasoline produces 1.1 x 108 J of energy, and this energy is sufficient to operate a car for twenty miles. If a 504 mg drop of gasoline could be converted completely into thermal energy, how many miles could the car go with that ..
Sometimes mirages are formed when light reflects from of a warm layer of air near a hot surface (like a road). what is the index of refraction of the hot air
a physicist has developed a device that generates a beam of alpha particles each of which is a helium nucleus
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