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Two hanging balls, each with a mass of 10g, have equal charges. One ball is hung by an insulated thread. Another ball held by an insulated rod. When it is brought horizontally towards the hanging ball within .12m of the hanging ball, the suspended ball is deflected (deflection due to like charges on both balls) until the thread creates a 30 degree angle with the vertical while its distance is still .12m from the ball held with an insulated rod. At this angle, the forces are balanced.
A) Draw a force diagram for the balls
B) Calculate Force due to gravity F_gravity
C) Calculate electric force F_electric
D) Calculate charge on each ball.
If electrons are moving in the presence of an electric field and the field in turned off, do they continue to move or come to rest with zero velocity. When discussing the ganeration of electron/holes pairs by light in semiconductors is it best to ..
A point charge of 20nC is located at (4,-1,3), and a uniformline charge of -25nC/m lies along the intersection of the planesx=-4 and z=6. (a) Calculate D at (3,-1,0). (b) How much electric flux leves the surface of a sphere of radius 5,centered at..
The key management phase of the IEEE802.11i RSN involves the generation of cryptographic keys for the use of AP and the STA. By applying the IEEE802.1X standard, show how these keys are generated. Briefly describe the five IEEE 802.11i phases of op..
An analog signal ranging between 0 and 1 V must be quantized. The midrange quantization errors must be no greater than 0.1V. How many quantization bits must be used to satisfy this requirement
a dsp system is given with the following specifications: design requirements: sampling rate 20,000 Hz Maximum allowable gain variation from 0 to 4,000 Hz = 2dB 40dB rejection at the frequency of 16000 Hz
IN a 2-pole, 208 V (line-to-line, rms), 60-Hz, motor, Rs= 0.5Ω and R'r = 0.45Ω, Xls= 0.6Ω, and X'tr = 0.83Ω. The magnetizing reactance Xm = 28.5Ω. This motor is supplied by its rated voltages. The rated torque is developed at teh slip s = 0.04.
a 60 Hz power generator is in series with a 800 Ohm resistor and 4 micro farad capacitor. Calculate the power concert.
An electron is bound in a one-dimensional infinite potential well with a width of 5Å. (a) Calculate the first three energy levels that the electron may occupy. (b) If the electron drops from the third to the second energy level
How a capacitor filter up the noise, explain using logic thinking perspective method. Not using the formula to explain. (Explanation should suitable for newbie to understand)
Design an inverting op-amp circuit for which the gain is -5V/V and the total resistance used is 120kΩ
How could the rising-tone acoustical illusion be modified to obtain a tone that goes up and down in pitch at the same time.
A dc servomotor is going to be used to drive a conveyor belt in a potato chip factory. The conveyor belt will contain bags of potato chips that will be dumped into cardboard boxes for shipping. The lead process controls engineer has instructed you to..
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