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A resistor connected across an AC power supply has a current given by I = (1.15A) cos (300t) when connected to a power supply with emf 120V rms. a) Find the rms current. b) Find the resistance. c) Find the average power delivered to the resistor. Express your answers with the appropriate units.
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
A 120 gcube of ice at 0°C is dropped into 1.0 kg of water that wasoriginally at 86°C. What is the final temperature of the water after the ice has melted
Determine the position q1 of the image formed by the first converging lens.
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
A point moves along the x-axis with its position, x, at time t given by x(t) = t3 - 3t2 + 2t - 1. Which of the following is the acceleration when t = 2?
A train is travelling up a 3.2 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
An object has a charge of -4.3 ?C. How many electrons must be removed so that the charge becomes +2.8 C?
What is the image distance and What is the lateral magnification
you are a part of a citizens group evaluating the safety of a high school athletic program. to help judge the diving
The gauge pressure at the bottom of a reservoir is 5.0 times what it is at a depth of 2.1 m. How deep is the reservoir
An electron in the first excited state (n=2) of hydrogen. How many possible states of orbital angular momentum are there for the electron, How many Possible spin states are there for the electron
A zone plate is to be set up on an optical bench , where it will be used an an enlarging lens. find the focal length of the zone plate
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