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Repeat Problem 5.7 using the Causebrook correction to find a better value of the excess path loss.
Problem 5.7
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.
Two railroad cars, each of mass 6500 kg and traveling 98 km/h in opposite directions, collide head-on and come to rest. Find how much thermal energy is produced in this collision
Two spheres are launched horizontally from a0.82-m-high table. Sphere A is launched with an initial speed of4.23 m/s. What is the time for second sphere to hit the floor
The magnetic field component of the electromagnetic wave is 15.0 ?T. What is the magnetic energy density of the wave
Find the magnitude of book's velocity, just before the book reaches the floor. Find the direction of book's velocity
A car moving at 15 m/s skids to a stop in 20 m. If the cartravels at 45m/s , how far will skid, assuming the same constantbraking force? Calculate the kinetic energy of the earth as it makes onrevolution around the sun.
A particle moves on the x axis under the influence of the force F = ?/x3. The initial position is x0, and the initial velocity is 0. [Data: mass = 1 kg; ? = 2 N m3; x0 = 3 m. ]
a setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal
A typical sound level for a buzzing mosquito is35dB, and that of a vacuum cleaner is approximately 69dB. Approximately how many buzzing mosquitoes will produce a sound intensity equal to that of a vacuum cleaner?
You throw a ball straight down from an apartment balcony to the ground below. find the height of the balcony
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 23.3 Newton; when it is completely immersed in water, the scale reads 16.8 Newton. Estimate what is the density of the block
If you were to drop a ball, releasing it from rest, what information would be needed to predict how much time it would take for the ball to hit the floor? What assumptions must you make
In each cycle of its operation, a refrigerator removes 17J of heat from the inside of the refrigerator, How much work per cycle is required to operate this refrigerator
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