Physics, 14.03.2020 00:12 chocolateFudge
An uninsulated steam pipe is used to transport high‐temperature steam from one building to another. The pipe is of 0.5‐m diameter, has a surface temperature of 150°C, and is exposed to ambient air at −10°C. The air moves in cross flow over the pipe with a velocity of 5 m/s. a. What is the heat loss per unit length of pipe?b. Consider the effect of insulating the pipe with a rigid urethane foam (k = 0.026 W/m . K). Evaluate and plot the heat loss as a function of the thickness of the insulation layer for 0 leq delta leq 50 mm.
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(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
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Physics, 22.06.2019 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
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An uninsulated steam pipe is used to transport high‐temperature steam from one building to another....
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