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1. A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.25 ? 109Image for 1.A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, ea resistance. (For the questions below, explicitly show on paper how you follow the steps in the Problem-Solving Strategy for series and parallel resistors found on pages 511-2. Your instructor may ask you to turn in this work.)
(a) What is the resistance to ground of 100 of these insulators?
(b) Calculate the power dissipated by 100 of them.
(c) What fraction of the power carried by the line is this?
2.Consider the following figure
(a) Find the equivalent resistance between points a and b in the figure. (R = 16.0 ?)
(b) Calculate the current in each resistor if a potential difference of 46.0 V is applied between points a and b.
Calculate the acceleration of the object for an elapsed time of t=1s. use the formula: x-x0=v0t+1/2at^2 x=4.5 m v0=6.0m/s x0=-3.7m
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 8.2seconds before stopping, how far did they skid? Hint: Are the a..
A spherical water drop 1.20μ m in diameter issuspended in calm air owing to a downward-directed atmosphericelectric field E = 442 N/C. What is the weight of the drop
question1a bolt drops from the ceiling of a train car that is accelerating northward at a rate of 3.50 ms2.a what is
point charges of 28.0 microc and 46.0 microc are placed 0.500 m apart.a at what point along the line connecting them is
An arrow is shot straight up from a pit 12 m below ground at 38 m/s. Find its max height above ground
An electromagnetic wave of wavelength 405 is traveling in vacuum in the direction. The electric field has amplitude 2.20×10?3, What is the frequency of this wave
when a dime (diameter 1.624 cm) is placed straight over it, bubble can be seen by looking down into the cube. What are upper and lower bounds of the range of the possible depths of the air bubble beneath surface.
An old-fashioned (vinyl) record rotates at a constant rate of 33 rpm. If the record has a radius of 18 centimeter, determine what is the linear speed of a point on its edge
A small hollow tube is glued to a speaker in a vertical manner. The speaker is set to play a single tone such that it vibrates vertically with simple harmonic motion. Find an expression for the frequency at which rattling begins
The resistor, inductor, and capacitor, and voltage source described in problem 1 are connected to form an L-R-C series circuit. Problem 1:You have a 200 ohm resistor, a .400-H inductor, and a 6.00-uF capacitor.
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
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