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Question: A long, metal cylinder with radius of R and the initial temperature of 100°C is suddenly submerged into a large pool of sea water of 5°C:
a) Drive the general format of the transient state temperature profile (i.e. use symbols, not numbers) along the radius of the bar;
b) Plot the cross sectional temperature profile of the cylinder from time = 0 to t = infinity. Assuming the bar is made of iron alloy, R = 10 cm; its density = 8.0 g/cm3; heat conductivity = 80 W/(m*K); and heat capacity = 0.4 J/(g*C).
I have an assignment in mathematical methods that needs to be solved . The question also requires a matlab program that constructs a temperature profile of the cylinder
an engine rejects 1260 mjh when running at a thermal efficiency of 22. the calorific value of the fuel used is 42 mjkg.
in a tensile test the starting gage length 100 mm and the cross-sectional area 150 mm2. during testing the following
Design an op-amp circuit to implement an analog PD controller action. Select components to give a Kp gain value of 5 and a Kd value of 0.1.
Assume that the uncertainty in the convection heat-transfer coefficient calculated with the appropriate formula from Table 8.6 is ±15 percent. Assume that the uncertainty in the resistance-thermometer measurement is ±0.03?C.
a horizontal force of 80 n acts on a mass of 6 kg resting on a horizontal surface. the mass is initially at rest and
the flow curve for austenitic stainless steel has the following parameters strength coefficient 1200 mpa and
steam at 300 degc travels through a pipe covered with two layers of insulation. the first layer of insulation is 3 cm
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a carnot refrigerator is maintaining food stuffs in a refrigerated area at 2oc by rejecting heat to the atmosphere at
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a garden hose is open at one end and capped closed at the other. a swimmer in an above-ground pool fills the hose
A rocket is launched vertically and reaches its maximum height hmax. What are its velocity, v(t)= (dh/dt) , and height above ground h(t) as a function of time t >_ 0(greater than or equal to) before it lands on ground (h = 0)?
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