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A particular inductor has appreciable resistance. When the inductoris connected to a 11.5 V battery, the current in the inductor is4.54 A. When it is connected to AC source with an rms output of11.5 V and a frequency of 69 Hz, the current drops to 1.94 A.
Find the impedance at 69 Hz. Answer in units of Ω .Find the inductance of the inductor.Answer in units of mH.
In a model ac generator, a 498 turn rectangular coil, 10.0 cm by 29 cm, rotates at 122 rev/min in a uniform magnetic field of 0.62 T. What is the maximum emf induced in the coil
During basketball tryouts, Umass walk-on hopeful Dwayne Madison stole a pass at his own free throw line. He then spring straight down the court to the opponent's free throw line, What was his avg velocity
A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be
A horizontal turntable is made from a uniform solid disk and is initially rotating with angular velocity of 7.5 rad/s about a fixed vertical axis through its center. What is the mass of the turntable
One end of a brass bar is maintained at 300°C, while the other end is kept at a constant but lower temperature. What is the temperature of the bar at a point 0.15 m from the hot end
If the boat driver wishes to land the boat at a dock on the other side of the river directly oppistie his starting position, Which direction should the boat driver point his boat
a car traveling due east at 20 m/s reverses its direction over a period of 10 seconds so that it is traveling due west at 20 m/s. What is the direction of the car's average acceleration over this period?
in a wild shot rashad flings a pool ball of a mass of a .7m high pool table and the ball hits the floor with a speed
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
A young person has a near point NP= 14.4cm and a far point FP = 3.54m. using a ideal near point 25cm, determine the proper corrective lens for this person
A chain consisting of five links, each of mass 0.200 kg, is lifted vertically with a constant acceleration of a = 2.7 m/s2. Find out the magnitude of the force that link 3 exerts on link 2.
Nichrome wire of cross-sectional radius 0.780 mm is to be used in winding a heating coil. find the length (in meters) of wire needed to wind the coil
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