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A cylindrical capacitor has outer and inner conductors whose radii are in the ratio of 5 to1. The inner conductoris to be replaced by a wire whose radius is one half the radius of the original inner conductor. By what factor should the length be increased in order to obtain a capacitance equal to that of the original capacitor?
A 7.5 F capacitor is charged to 34 V and is then connected across a 11-mH inductor. (a) How much energy is stored in the system? (b) What is the frequency of oscillation of the circuit? (c) What is the maximum current in the circuit?
A 0.80 -long metal rod is dropped vertically onto a marble floor. When the rod strikes the floor, it is determined electronically that the impact produces a 5 kHz-tone. What is the speed of sound in the rod?
A pendulum of length 7.87 m is released from rest at an angle of 22.4 º from the vertical. What is the maximum speed of the pendulum
A 0.377 kg mass is attached to a spring and undergoes simple harmonic motion with a period of 0.57 s. The total energy of the system is 3 J
Liquid water at 25C and 1 bar fills a rigid vessel If heat is added to the water until it's temperature reaches 50C, what pressure is developed? The average value of B between 25 and 50C is 36.2x10^-5/K. The value of K at 1 bar and 50C is 4.42x10^-5/..
Consider an element having excited states at 3.6 eV and 4.6 eV used as a gas in the Frank-Hertz experiment. Assume that the work functions cancel out. List all the possible peaks that MIGHT be observed with electron scattering up to an accelerating v..
A boy throws a 1.5 kg rock upward. To do so the boy applies a constant 38.5 N force upwards on the rock from point a to point b. after that the rock continues upward to its highest height at point c.
A uniform flat rectangular sheet of mass m and side lengths a and b rotates with angular speed ? around a diagonal, What is the upper bound on the torque
You are standing at = 9.0 km Lightning bolt 1 at x= 0km and lightning bolt 2 at x = 12.0km. what is the time difference between the two flashes
Suppose he hits the ball with a speed of 29 m/s at an angle of 26° above the horizontal. Explain how long was the ball in flight? How far did it travel?
The centers of a 10kg lead ball and a 90g lead ball are separated by 8.0cm. What is the ratio of this gravitational force to the weight of the 90g ball
An electron with kinetic energy 1.52 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 22.0 cm, Find the frequency of circling
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