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A 1 GHz transmitter sends a signal to a receiver 4 km away. There are three knife-edged absorbing screens intercepting the direct path. The first screen has an excess height of 5 m and is 1 km from the transmitter. The second screen has an excess height of 10 m and is 2 km from the transmitter. The third screen has an excess height of 5 m and is 3 km from the transmitter. Find the excess path loss using the Deygout method.
A thin, uniform rod is hinged at its midpoint. To begin with, one half of the rod is bent upward and is perpendicular to the other half. What is the angular velocity of the straight rod
A parallel-plate capacitor has plates with an area of 500 cm2 separated by 1.7 mm. What is the electric field among the plates when they are charged with 2.500×10-6 C?
A light spring with a spring constant of 80.0 N/m rests vertically on a table. A 2g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 5.00 m3 and connected to spring, causing the spring to stretch and expand. How much does the ..
Each railroad car has a mass of 62000 kg. Nine coupled railroad car moving with a speed of 2.8 m/s collide, What is the speed of all fourteen cars after the collision
Three identical metal spheres are charged so that sphere A has a charge of 220 ?C, sphere B has a charge of -370 ?C, What is the final charge on each sphere
What is the charge on the capacitor at t=5 seconds (in coulombs)? What is the voltage on the capacitor at t=5 seconds (in volts)?
A proton moves perpendicular to a uniform magnetic field at a speed of 1.40 107 m/s and experiences an acceleration of 2.60 1013 m/s2 in the positive x-direction when its velocity is in the positive z-direction. Determine the magnitude and direction ..
While at a country fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find the motion somewhat unpleasant. Calculate the magnitude of your acceleration
A large solid spool, with mass 60 kg and radius 50 cm, is wrapped with a long piece of lightweight rope. After the motor is switched on, how long will it take the large spool to reach a rotation speed of 30 revolutions per minute
An assembly line has a staple gun that rolls to the left at 1.1 m/s while parts to be stapled roll past it to the right at 3.8 m/s. How far apart are the staples in the finished part
The hard drive memory of desk-top computer used for word processing has a capacity of 4.0GByte (GB). (A byte is the amount of memory needed to store one alphabetic character.) A single page of double-spaced text requires about 6kB of memory and a ..
Suppose your lab partner has a height L of 170 cm (5 ft, 7 in) and a weight w of 680 N (153 lb). find the distance of your lab partner's center of gravity from the left end of the board
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