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A silver bar having the following characteristics:Length = 10 cmConstant cross section of area = 1 cm2Density = 10.6 g/cm3Thermal conductivity = 1.04 cal/(cm sec )Specific heat = 0.056 cal/(g )is perfectly insulated laterally, with ends kept at 100 for a long time.Then at some instant, call it t = 0, the temperature at x = L is suddenly changed to 0 and kept at 0 , whereas the temperature at x = 0 is kept at 100 .Determine the temperature in the middle of the bar and evaluate it at t = 1, 2, 3, 10, 50 sec. First guess, and then calculate. Also, plot the temperature expression vs. time from t = 1 to 50 sec using Excel .
Write down the principle of energy conversion and give an example for single and double excited system.
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)
A simple voltmeter with a full-scale reading of 50(V) is required. Use a d'Arsonval movement with a rating of 20(mV) at 1 (mA). Calculate the value of the voltmeter resistor, Rv, required to achieve these design specifications.
For a modulating signal) x(t)= (t/T) a) Write an expression for the PM modulated signal. b) Write an expression for the FM modulated signal. c) What is the maximum phase deviation of the PM signal
find the one-way propagation delay for a 10 meter length. Find the two-way propagation delay. (The two-way delay is the time it takes for the wave to travel from the source to the load and back to the source, like in a radar)
A certain battery has terminals labeled a and b. The battery voltage is vab = 12 V. a) To increase the chemical energy stored in the battery by 600J, how much charge must move through the battery
A silicon diode has a reverse current of 5 uA and 25 degrees celcius and 100uA at 100 degrees celcius. What is the saturation current and surface leakage current at 25 degrees celcius
Two input capture events occur at counts 0x1037 (first event) and 0xFF20 (second event) of the free-running counter. How many counts, in decimal, have transpired between these two events
A three phase transformer is constructed from three 3kVA transformer. Secondaries are wired in Delta configuration with a balanced load. What is the maximun combined power that can be delivered to the load
A proportional controller for a rotating antenna has a gain of Kp of 5 in-oz/deg. The antenna was initially pointing south, but was then commanded to point southeast. Find the torque applied to the antenna in in-oz, when the antenna is within 5° o..
Market research and a competitive analysis are typically used in order to determine the feasibility of a new technology. How you could use advanced market research in order to remain competitive
a cost to produce, P, of $4.00. If we were able to reduce this to $3.55 through greater attention in the design, and if the cost to improve the design (in NRE) is $35,000, how many units must we sell to recover the increased design cost.
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