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If in the communication system described in Problem 5.5, the screen is inserted so that its edge is 20 m above the direct path, calculate the excess path loss and the total path loss.
Problem 5.5
A 1.8 GHz transmitter and a receiver are separated by 6 km. A sharp edge absorbing screen is inserted below and normal to the direct path between transmitter and receiver, which is 2 km from the transmitter. How closely can the edge of the screen approach the direct path and not introduce excess path loss
A fireworks rocket is launched vertically upward at 40 m/s. At the peak of its trajectory, When does the second fragment reach the ground
Light from a sodium light with wavelength 589 nm illuminates two narrow slits. The fringe spacing on a screen 180 cm from the slits is 5.00mm. what is the spacing d between the slits
What is the pressure in Pascals at point b if the volume of point b is 0.400.
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the following frequency distribution analyzes the scores on a test. find the class boundaries of scores interval
When a battery is connected to the plates of a 2.00-µF capacitor, it stores a charge of 30.0 µC. What is the voltage of the battery
the earth puts a gravitational force on the moon. the moon puts a gravitational force on the earth. how do the
βAn observer that is standing 12m from a stereo sound speaker perceives the sound level from the speaker to be 60 dβ. What is the decrease in the physical intensity in watts/m2
In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the surface
find the ratio of vb to vr, where vr is defined above and vb is the boats speed with respect to the water.
Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 516 Hz, determine the (a) initial and (b) final sound intensities (in ?W/m2) and the (c) ..
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