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The heat loss through the exterior walls of a certain poultry processing plant is estimated to cost the owner $3,000 next year. A salesman from Superfiber Insulation, Inc., has told you, the plant engineer, that he can reduce the heat loss by 80% with the installation of $18,000 worth of Superfiber now. If the cost of heat rises by $200 per year (uniform gradient) after the next year and the owner plans to keep the present building for 15 more years, if the interest is 10% per year, what is the cost of heat without the installation?
What is the cross price elasticity of demand between XYZ's and AB C's widgets?
Why can't a video signal such as an NTSC analog television signal be transmitted over a two km length of loaded twisted pair cable with a frequency range 300 Hz to 3,400 Hz? What is the bandwidth occupied by an NTSC video signal?
how to design boost converter and inverter parameters?
The amount of heat Q needed to turn a mass, m, of room temperature ( T_1) water into steam at 100 Celcius. ( T_2) can be found using the specific heat, c, of water and the heat of vaporization, H_v, of water at 1 atmosphere of pressure.
A three-phase 600VAC generator delivers 2000KVA at a lagging power factor of 81%. If the generator is 86% efficient how much horsepower is required to operate it If the generator outputs its rated voltage what would the line current
The command in AutoCAD can be a time-saver, particularly when you're working in an application where you want to move a door or windows within walls on a drawing and don't want to redraw the walls.
A coiled tungsten wire of diameter 50um and length 10cm is glowing at a temperature of 2000°C within an evacuated light bulb. Determine the irradiance of the filament and the fraction of irradiance within the visible range of wavelength.
A certain transmission line is 10 meters long. Measurements indicate that the total inductance of the cable is 16 uH. Standing wave measurements indicate that the voltage reflection coefficient at the load is 0.5 + j0
A 9 GHz parallel polarized wave with an amplitude of 20 V/m is obliquely incident from air (z 0). Theta_i equals a 60-degree angle of incidence.
determine the transfer function of a 4th order lowpass butterworth filter with a 3-dB cutoff frequency of 3.4 kHz and passband gain=1. Design the circuit using MFB topology. Design two sections with an order of 2.
An amplifier with a voltage gain of +30db, an input resistance of 8 k ohms, and an output resistance of 2 k ohms is used to drive a 2 k
A resistive temperature sensor is modeled as R(T) = 100 +0.0039(T-25)+1.0x10^-5(T-25)^2 where T is in degrees C. Calculate the tempco and sensitivity at T = 50 degrees C.
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