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A long bar of rectangular cross section is 60 mm by 90 mm on a side and has a thermal conductivity of 1W/m · K. One surface is exposed to a convection process with air at 100°C and a convection coefficient of 100W/m2 · K, while the remaining surfaces are maintained at 50°C.
(a) Using a grid spacing of 30 mm and the Gauss-Seidel iteration method, determine the nodal temperatures and the heat rate per unit length normal to the page into the bar from the air.
(b) Determine the effect of grid spacing on the temperature field and heat rate. Specifically, consider a grid spacing of 15 mm. For this grid, explore the effect of changes in h on the temperature field and the isotherms.
An electrically powered, ring-shaped radiant heating element is maintained at a temperature of Th = 3000 K and is used in a manufacturing process to heat a small part having a surface area of Ap = 0.007 m2. The surface of the heating element may b..
Design a counter that will execute the numerical sequence 0, 2, 4, 6,repetitively. Unwanted states should be directed into wanted states that give the simplest logic functions. - Identify the number of required JK D-FLIP FLOP;
Assuming that ideal filters are available, what is the lowest frequency at which the signal can be sampled and subsequently recovered in its analog form without distortion using a low pass filter?
An experiment consists of drawing two balls without replacement from an urn containing six balls numbered 1 to 6.Describe the sample description space(omega).What is omega if the ball isreplaced before the second is drawn
assume that the passengers arrive at a taxi stand according to a poisson process with parameter lambda. there are m
1. Consider the following voltage wave V(t) = 170 + cos(377)t volts what's the RMS value of this wave 2. What voltage will a DC voltmeter read if connected to an ideal voltage generator with the voltage of V(t) = 170 + cos(377)t.
a point charge q is located at 0-40 while a 10nc charge is uniformly distributed along a semicircular ring as shown
A continuous-time (CT) function is non-zero over a range of its argument from 0 to 4. It is convolved with a function which is non-zero over a range of its argument from -3 to -1. What is the non-zero range of the convolution of the two
A 2400-115V transformer has a sinusodial flux expressed by φ=0.113 sin 188.5t. determine the primary and secondary turns.
(a) Compute the minimum voltage that the output voltage across R1 falls to when both capacitors C1 and C2 are present. (b) Using the same model for D1, compute the maximum voltage that the output voltage across R1 rises to.
Provide an output V to indicate that at least one of the input ispresent. The input with the highest subscript number has thehighest priority. What will be the value of the four outputs if inputs D5 and D3 are 1 at the same time
A certain element has a phasor voltage of V=86.6+j50 V and the current I= -2.5+j4.33 A. The angular frquency is 200rad/s. determine the value of C to two significant figures with appropriate units.
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