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The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.939 W/m2. The wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. How much total electromagnetic energy falls on the area during 1.0 minute? (c = 3.0 x 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2)
A series circuit with R=20ohms, C=330 MuF and L=30 mh, is connected to an AC sourceof amplitude 160v and frequencey of 60 Hz, Whats the power dissipated by the circuit
You are given 65.000 cm of copper wire with diameter 7.0000 mm. At what rate is thermal energy generated in the loop
In coming to a stop, a car leaves skid marks 81 m long on the highway. Assuming a deceleration of 4.30 m/s 2 , estimate the speed of the car just before braking
Radio astronomers detect electromagnetic radiation at 46.0MHz from an interstellar gas cloud. What is the magnetic field strength inside the gas cloud
A softball player swings a bat, accelerating it from rest to 5.0 rev/s in a time of 0.25 seconds. compute the torque the player applies to one end of it
a sloenoid 3.0 cm long consists of 8013 loops of wire if the magnetic field inside the solenoid is 3.0 T, what is the magnitude of the current that flows through it
A 25kg solid door is 220cm tall, 91cm wide. What is the door's moment of inertia for rotation about a vertical axis inside the door, 15cm from one edge.
A electric model train travels at 34.7 cm/s around a circular track of radius 1.61 m. Find the train's period of revolution
A rock is travelling in a horizontal circle due to a string with a tension of 100.5 N that is 2.0 m long. What is the tangential speed of the rock
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley, calculate the magnitude of their acceleration, a, and the tension in the rope, T
A 1300-kg car moving on a horizontal surface has speed v = 55km/h when it strikes a horizontal coiled spring, What is the spring stiffness constant of the spring
q1. a meterstick is at rest in an inertial frame s2. if s2 moves with a speed of 0.7c with respect to a rest frame s1
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