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5.33 (Facebook User Base Growth) According to CNNMoney.com, Facebook hit one billion users in October 2012. Using the compound-growth technique you learned in Fig. 5.6 and assuming its user base grows at a rate of 4% per month, how many months will it take for Facebook to grow its user base to 1.5 billion users? How many months will it take for Facebook to grow its user base to two billion users?
A point charge Q is located at (0,0,d) above an infiniteconducting plane that lies in the xy-plane and is maintained atground potential. Find a) the surface charge density as a function of x and y on the conducting plane and b) the total charge in..
Consider a DC series motordesigned to operate with VS = 200 V. Suppose the rotorresistance is 0.40 ohms. and the field coil resistance is0.10 ohms . An RPM measurement reveals that when the line currentis 35 A when the motor is spinning at n = 500..
For evaporation from a point source, derive the ratio between the film thickness, d and the maximum thickness, d0 on a substrate of radius, r. What is the ratio for a surface source
identify the types of system-building methods used by dorfman to build its wireless warehouse system.describe the
consider a communication channel corrupted by noise. let X bethe value of the transmitted signal and Y be the value of thereceived signal. assume that the conditional density of Y given(X=x) is Guassian, that is, fy/x(y/x)=1/√2πσ*σexp(-(y-x)squ..
You have a 120 VAC motor pump system. The system will work in a voltage range from 100 to 130 volts. you can count on the minimum voltage from the supplier to be 115 VAC. The wiring will consist of #14 awg which has a resistance of 2.5 ohms/1000 f..
A single-phase, 100-kVA, 1000:100-V, 60-Hz transformer has the following test results: Open-circuit test (FIV side open): 100 V, 6 A, 400 W Short-circuit test (LV side shorted): 50 V, 100 A, 1800 W 1)Determine the voltage regulation at 75% of the rat..
The can's initial volume at 5 °C is 7.2 × 10-4 m3. The coefficient of volume expansion for aluminum is 69 × 10-6 (C°)-1. When the can and the liquid are heated to 87 °C, 7.0 × 10-6 m3 of liquid spills over.
a binary ripple counter uses flip-flops that trigger on the positive edge of the clock. What will be the count if:a) the normal outputs of the flip-flops are cnnected to the clock
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input
Consider an electron in a cubic crystal of a semiconductor material. Such an electron is free to move throughout the cubic volume of the crystal, but cannot escape outside the cube. It is trapped in a three-dimensional infinite potential well.
A 120/240V single phase transformer is connected as an autotransformer. Suppose that V1 is 120V at zero degrees and the transformer is ideal. Find V2, I1, and I2.
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