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1. Find a formula for the average power P dissipated in an LRC circuit in terms of L, R, C, w, and V0.
2. Find at what frequency is the power is maximum?
3. Determine an approximation formula for the width of the resonance peak in average power, which is the difference in the two (angular) frequencies where P has half maximum value. Suppose sharp peak.
Two long straight wires are parallel and 7.8 cm apart. Theyare to carry equal currents such that the magnetic field at a pointhalfway between them has magnitude 350 µT. How much current(in A) is needed?
The force on a magnetic moment µz in a nonuniform magnetic field Bz is given by Fz = µz(dBz/dz). If a beam of silver atoms travels a horizontal distance of 1.00 m through such a field and each atom has a speed of 142 m/s, how strong must be the field..
A grade school student plans to build a 31-power telescope as a science fair project. She starts with a magnifying glass with a focal length of 4.8cm as the eyepiece
Ball bearings can be made by letting spherical drops of molten metal fall in a tall tower - called a shot tower - and solidify as they fall. If a bearing needs 4.0s to solidify enough for impact, how high should the tower be?
What is the speed of a car going v = 1mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately. mke Use of the facts that 1 mile = 1609m and 1hour = 3600s.
assuming the acceleration is constant throughout each time interval (but not necessarily the same in both intervals), what distance does the shuttle travel during the interval from 7.00 s to 1.00 min.
you throw a ball m 2kg with an initial velocity of 20 ms at an angle of 60 degrees from the top of a 30m cliff. a
A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Find the translational speed at the top
A .5 kg ball, traveling 20 m/s, is struck by a bat, imparting an impulse of 50 Ns in the opposite direction. Discover the speed of the ball after being struck.
A uniform 2 kg cylinder of radius 0.15m is suspended by twostrings wrapped around it. obtain the acceleration of the center of mass of the cylinder
a parallel plate capacitor has a capacitance of 10mf and its charge with a 20v power supply. the power supply is then
Water flowing out of a horizontal pipe emerges through a nozzle is 0.48 cm. The speed of the water in the pipe is 0.62 m/s. Treat the water as an ideal fluid, and determine the absolute pressure of the water in the pipe.
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