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A retail grocer has a daily demand X for a certain food sold by the pound, such that X (measured in hundreds of pounds) has probability density function
(He cannot stock over 100 pounds.) The grocer wants to order 100k of food on a certain day. He buys the food at 6¢ per pound and sells it at 10¢ per pound. What value of k will maximize his expected daily profit?
Draw the correct circuit to serve a 7.2kv single-phase load from a 2.4kv source. If the laod is 50kVa at pf=.8 lagging, compute the secondary and primary phasor currents. is this a step-up or step-down application
An embedded system with a 8 bit analog to digital converter is connected to a transducer with an output voltage of 20 millivolts. This signal is then amplified by an amplifier with a gain of 50. Assume that this signal level is appropriate for the..
Determine (a) the required step up voltage ratio for satisfactory performance; (b) the voltage ratio of a standard buck-boost transformer that most closely meets the requirements of the load with the buck-boost transformer installed.
The open-loop gain of a compensated op-amp is measured as follows:5.1´103 at100 kHz and 8.3´103 at10 kHz. Calculate its 3dB frequency, its unity-gain frequency, and its dc gain.
A single phase AC circuit is conected to a 120V, 60Hz. The circuit impedance is Z=8+j6Ω at 60Hz. Calculate the rms phase current, real & reactive power and power factor.
the question is attached. i want to know if the equations i derived are correct ? and if they are not correct what is
In this example we consider the time-domain waveforms corresponding to VSB modulation and consider demodulation using envelope detection or carrier reinsertion. We assume the same message signal as was assumed Example 3.4. In other words,
Determine: (a) the resistance of the coil,(b) the current flowing in the circuit one second after the shorting link has been placed in the circuit, and (c) the time taken for the current to fall to 10% of its initial value.
Problem: This semester you will realize a Moore finite state machine for implementing the tail lights of a prototype car using four different design tools:
Gauss's Law and Applications: Two infinitely long coaxial cylindrical surfaces, r = a and r= b (b > a), carry surface charge densities ?sa and ?sb,respectively. (a) Determine the electric field intensity everywhere. (b) What must be the relation betw..
1) What is the difference between Vin and Vo in a voltage clipping circuit with a zener diode 2) Does Vzo of a zener depend on the temperature of the surrpunding 3) Why is it necessary to put a resistor in a voltage regulator cirucit with a zener di..
Assume that each donor atom contributes one free electron to the silicon lattice. For an n-type doping of 5x10^15 cm-3, how many silicon atoms are present for each lattice impurity
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