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A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 4:15. When used with 120 V (rms) household service, the transformer draws an rms current of 200 mA. Find the following.
(a) rms output voltage of the transformer
V
(b) power delivered to the CD player
W
A standing wave is set up by reflecting radio waves from a large, flat metal dish. What is the frequency of the radio waves
Assume a car's brakes can produce an acceleration of -7 m/s2. If the car is travelling at an initial speed of 28.0m/s, what is the minimum distance necessary to stop car.
To make a bounce pass, a player throws a 0.60-kgbasketball toward the floor. find the magnitude of the impulse delivered to it by the floor
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Consider the following circuit with emf = 12 V, C = 2 microF, L = 6 microH, and R = 6ohms. What is the value of the energy stored in the inductor
q1. a student in a parked car honks the horn that has a proper frequency of 310.00 hz. an observer in an approaching
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