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Repeat the calculation in Problem 6.1 with the added provision that the signal must be accessible inside buildings. The building loss has an average value of 11 dB and a standard deviation of 6 dB
Problem 6.1
A cell phone system in an urban area is to be designed to allow reception at the cell edge with a 96% success rate. The base station antenna height is 50 m, the lowest mobile antenna height is 1.5 m, the frequency is 880 MHz, the standard deviation of the shadowing is 12 dB, and the maximum acceptable path loss is 140 dB. Calculate the maximum cell radius
A single slit of size 0.15 mm is illuminated by light of wavelength 633 nm. What is the width of the central bright fringe seen on a screen 2 meters from the slit
The ?0 particle has a mass of 497.7 MeV/c2. It decays into a ?? and ?+, each having mass 139.6 MeV/c2. Determine the kinetic energy of the other pion after the decay
A uniform rod of mass 1.5 kilogram and length 0.5 meter leans against a vertical frictionless wall. Calculate the maximal angle between the vertical and the rod for which the rod will not slip
Kelli weighs 405 N, and she is sitting on the playground swing that hangs 0.43 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. suppose that air resistance is negligible.
A sign is supported by a cable and a horizontal beam. The beam has a length 1.4 meter and a uniform mass of12 kilogram. If the cable breaks, find the net torque on the beam the instant thereafter
An 840 kg car needs to round a level curve with a radius of 23m.The driver wants to proceed at 56 kph. How much work does the friction force do on the car
Two balls of the same mass are accelerated by different net forces such that one ball gains a velocity twice that of the other ball in the process. Is the work done by the net force acting on the faster moving ball twice that done on the slower mo..
A fuse in an electric circuit is a wire that is designed to melt,and thereby open the circuit, if the current exceeds apredetermined value. Suppose that the material to be used in a fusemelts when the current density rises to 470 A/cm2.
A coin placed 30.4 cm from the center of a rotating, horizontal turntable slips when its speed is 48.8 cm/s. (b) What is the coefficient of static friction between coin and turntable?
Sun is falling towards a supermassive black hole in the centre of a galaxy. At some point, the star will start to be torn apart; for what black hole mass M(crit) does this happen at the event horizon?
A long thin solid rod lies along the positive x-axis. One end is at x = 1.80 m and the other at x = 3.40 m. The linear mass density is ρ = ax3 + bx, where ρ is measured in kg/m, and the constants have the following values: a = 1.70 kg/m4 and b = 2...
The maximum torque experienced by a coil in a 0.65 T magnetic field is 8.4 10-4 N · m. find the length of the wire from which the coil is made
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