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Suppose the firm has a fixed cost of $20,000 in preparing equipment prior to doing its first exploration. If each successful exploration costs $30,000 and each unsuccessful exploration costs $15,000, find the expected total cost to the firm for its ten explorations.
An amplifier operating from a single 15-V supply provides a 12-V peak-to-peak sine-wave signal to a I-ill load and draws negligible input current from the signal source. The de current drawn from the 15-v supply is 8mA.
a sphere of radius a has a bound charge of q distributed uniformly over it. the sphere is surrounded by a uniform fluid
Consider unsteady diffusion across a membrane of thickness L. Initially, the concentration of solute in the membrane is zero. At time zero, the concentration at x=0 is raised to C0 and the concentration at x=L is maintained at zero.
The number of students arriving at Mary's office hours is modeled as a Poisson random variable with an average of 1 student every 15 minutes. (a) What is the probability that no students arrive during office hours (3-5 PM)
Design a square wave generator that will provide a 4kHz square wave with a positive peak vlaue of +10V and negative peak value of -10V. You may use any number of op amps, resistors, and capacitors in this design.
Consider a long wire represented as distributed RC sections. The total wire length is 5mm. To reduce the wire delay, we uniformly insert n buffers along the wire. Suppose r=12Ohms/m and c=0.2fF/m and the delay of each buffer is 1ns.
Find the appropriate subchannel modulation format (note: the number of constellation points in the modulation mapping scheme should be the power of two).
a) A Si is doped with 10^17 boron atom/cm3. What is the electron concentration n0 at 300K. What is conductivity. b) A Ge sample is doped with 3x10^3 Sb atoms/cm3. Using the requirements of space charge neutrality
An n-type semiconductor is known to have an electron concentration of 5 × 10 ^17 m-3 . If the electron drift velocity is 350 m/s in an electric field of 1000 V/m, calculate the conductivity of this material.
1. If 60C of charge pass through an electric conductor in 30seconds, determine he current in the conducor. 2. Determine the time interval required for a 12A battery charger to deliver 4800C.
Genetic algorithms represent an optimization approach where a search is made to "evolve" a solution algorithm, which will retain the "most ?t" components in a procedure that is analogous to biological evolution through
describe digital logic circuit on behavioral and gate level;
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