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A series circuit consists of a 1.50-mH inductor, a 125-? resistor and a 25.0-nF capacitor connected across an ac source having a peak voltage of 35.0 V and a variable frequency. At what angular frequency(ies) will the current amplitude be equal to 1/3 of its maximum possible value? At the frequency(ies) just found what are the current amplitude and the voltage amplitude across each of the circuit elements, including the ac source?
A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. What is the frequency o the sound emitted by the horn
A 1.11 10-3 µF capacitor has an initial charge of 0.100 C. When a resistor is connected across the capacitor plates, there is an initial current through the resistor of 1.04 A. What is the current 1.10 s later?
Unpolarized light of intensity I0 is incident on the following arrangements of polarizing sheets. The first polarizer is oriented vertically; the second is oriented so it makes an angle of 30o by the vertical; the third and last polarizer makes an an..
A 10-kg box is at rest on a horizontal frictionless surface, at the end of an unstretched horizontal spring with constant k=4000 N/m, What is the speed of the box when it passes back through the equilibrium point
Find the required angular speed, omega, of an ultracentrifuge for the radial acceleration of a point 3.00cm from the axis to equal 4.00×105 g
A linearly polarized electromagnetic wave is sent through two sheets of polarizing material. What is the average intensity of the wave after it passes through A
Two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by y(x, t) = 0.01 sin(44x)cos(1090t). The string has a linear mass density of 0.01 kg/m, and the tension in the string is supplied by a m..
An archer lines up an arrow on the horizontal exactly dead center on a target. She releases the arrow, and it strikes the target a distance h=7.6cm below the center. how long was the arrow in the air before striking the target
Write the equation for Lorentz force by a magnetic field on a moving charge. Explain what is a cyclotron with diagrams, details on how it works, with relevant equations. For a cyclotron of radius R, what is the max energy a particle can achieve?
A light string can support a stationary hanging load of 23.8 kg before breaking. What range of speeds can the object have before the string breaks
An archer standing on a 15° slope shoots an arrow 20° above the horizontal, as shown in the figure. How far down the slope does the arrow hit
A transformer has 400 primary turns and 1510 secondary turns. The input voltage is 120 V and the output current is 16.0 A. Assume 100 percent efficiency. What is the output voltage
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