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In spherical coordinates, the electrical field of a chargedistribution is given by E = Be^(-r/Z) r-hat, where the lengthscale Z is a positive number and B is a constant. Calculate thepotential as a function of r, assuming V --> 0 as r -->∞. Calculate the charge density ρ as a function of r,and determine the total energy associated with this charge distribution.
A simple and common technique for accelerating electrons is shown in the figure, where there is a uniform electric field between two plates. Calculate the horizontal component of the acceleration
Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. find the temperature of the heating element on which the copper bottom rests
An inductor has a 51.6-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor
If the measured parallax shift of star A was 0.1 arcsecs and the parallax shift of star B was 0.05 arcsecs, What is the distance of the farthest star in light-years
q1. a rifle that shoots bullets at 420 ms is to be aimed at a target 49.0 m away. if the center of the target is level
A common flashlight bulb is rated at 0.300 A and 2.80 V (the values of the current and voltage under operating conditions). what is the temperature of the filament when the bulb is on
Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent brightness than Star 2 by a factor of 100. What can you conclude? (Overlook any effects that might be caused by interstellar dust and gas.)
If n=10, what is the largest value of the angular momentum l in this shell, How many electrons can be placed in this shell
A nuclear power plant has a maximum steam temperature (T_H) of 310 MW. It produces 410 T_C of electric power in the winter, what's its summertime electric power output
An electric grinding wheel of radius 0.50 m is initially at rest. When the motor is turned on at time t1=0s, What is the angular acceleration of the wheel during the first 2.1s of its motion
When a mass of 25 g is attached to a certain spring, it makes 19 complete vibrations in 4.5 s. What is the spring constant of the spring
Calculate the mass of Earth from the period of the moon, T = 27.3 d; its mean orbital radius, rm = 3.84 108 m; and the known value of G
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