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Heat Transfer A blacksmith wants to forge a 30 cm long metal bar. The initial temperature of the bar is at 1100oC. The surrounding air temperature is 23oC. He is wondering if he could get prediction on the time required and the region that is ready for hammering. To help the blacksmith, you've been asked to solve the case of 1-D unsteady heat conduction and you end up with the following general solution: (Material: Pyrolytic graphite; Thermal diffusivity: 1220 mm²/s) Where Fourier number FO = a.
A three-point bending test was performed on a glass specimen having a square cross-section of 15 mm length on each edge. The specimen fractured at a load of 4770 N when the distance between the support points was 41 mm.
The cantilevered bar in the figure has a circular cross section and is subject to bending and torsion. The normal stress due to bending in x=28 kpsi and the shear stress due to torsion is xz=15.3 kpsi. The change in diameter introduces a stress conce..
the water in a 25 m deep reservoir is kept inside by a 150 m wide wall whose cross section is an equilateral triangle.
As a 75 slug car travels along a horizontal, 3200 ft section of road, it changes speed from 5 mph to 60 mph. During this acceleration, the car gets an average MPG of 15 MPG. How efficient is the car’s engine during the acceleration assuming 1 gallon ..
a fire clay brick rho 2000 kgm2 k 1.0 wm-k cp 800 jkg-k of dimensions 5 cm by 10 cm by 15 cm is removed from a kiln
two carnot heat engines are operating in series such that the heat sink of the first engine serves as the heat source
air in the atmosphere is composed of primarily nitrogen oxygen and argon. the mole percents of the compounds are as
For this assessment item, you must produce MATLAB code which: 1. Identifies which entries are missing. 2. Displays a message in the Command Window showing how many missing entries there are for each of the relevant variables. 3. Uses a range of metho..
resolve a vector a which has a magnitude of 50 units and a direction of 210 degrees into two vetors b and c. c is to be
Write a report on Heat Treatment and Hardenability of Steels.
two refrigerators are arranged in series. one of them receives 300 kjcycle from a reservoir at 300 k. the heat
write a matlab program in a script file that finds a positive integer n such that the sum of all the integers 1 2 3
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