For the heat exchanger tube and fin arrangement shown write the node equations for nodes 2 and 5. Write the equations for both implicit and explicit methods.
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A(n) _________ source produces new dislocations when a segment of a dislocation is pinned at two ends on a slip plane and the resolved shear stress reaches a critical value.
Fill in the blank(s) with the appropriate word(s).
Displacement: Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object.
A. The displacement is either greater than or equal to the distance traveled. B. The displacement is always equal to the distance traveled. C. The displacement is either less than or equal to the distance traveled. D. The displacement can be either greater than, smaller than, or equal to the distance traveled.
Because of absorption, a Polaroid will actually transmit 40% of incident unpolarized light. Two such Polaroids with their axes aligned will transmit
A) 0%. B) 40%. C) 100%. D) between 0% and 40%. E) between 40% and 100%.
The flow of air in the upper atmosphere is predominantly from
A) east to west. B) west to east. C) north to south. D) south to north.