Chapter 6: Problem 12
Identify the major components of a computer, and briefly explain the function or the role of each component.
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Chapter 6: Problem 12
Identify the major components of a computer, and briefly explain the function or the role of each component.
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Convert the strength of selected materials given in the accompanying table from \(\mathrm{MPa}\) to \(\mathrm{ksi}\), where \(1000 \mathrm{lb}_{\mathrm{f}} / \mathrm{in}^{2}=1 \mathrm{ksi}\).\begin{array}{|l|c|c|} \hline \text { Material } & \begin{array}{c} \text { Ultimate } \\ \text { strength } \\ (\mathrm{MPa}) \end{array} & \begin{array}{c} \text { Ultimate } \\ \text { strength } \\ (\mathrm{ksi}) \end{array} \\ \hline \text { Aluminum alloys } & 100-550 & \\ \hline \text { Concrete (compression) } & 10-70 & \\ \hline \text { Steel } & & \\ \text { Machine } & 550-860 & \\ \text { Spring } & 700-1,900 & \\ \text { Stainless } & 400-1,000 & \\ \text { Tool } & 900 & \\ \hline \text { Structural Steel } & 340-830 & \\ \hline \text { Titanium alloys } & 900-1,200 & \\ \hline \text { Wood (Bending) } & & \\ \text { Douglas fir } & 50-80 & \\ \text { Oak } & 50-100 & \\ \text { Southern pine } & 50-100 & \\ \hline \end{array}
Investigate the operation of various turbines. Write a brief report explaining the operation of steam turbines, hydraulic turbines, gas turbines, and wind turbines.
A unit that is generally used to express the insulating value of clothing is called clo. 1 clo is equal to \(0.155 \mathrm{~m}^{2} \cdot{ }^{\circ} \mathrm{C} / \mathrm{W}\). Express this value in U.S. Customary units \(\left({ }^{\circ} \mathrm{F} \cdot \mathrm{ft}^{2} \cdot \mathrm{h} / \mathrm{Btu}\right)\).
The head loss due to flow of a fluid inside a pipe is calculated from \(b_{\text {Loss }}=f \frac{L}{D} \frac{V^{2}}{2 g}\), where \(b_{\text {Loos }}(\mathrm{m}), f\) is friction factor, \(L\) is pipe length ( \(\mathrm{m}\) ), \(D\) is pipe diameter \((\mathrm{m}), V\) is average flow velocity \((\mathrm{m} / \mathrm{s})\), and \(g\) is the acceleration due to gravity \(\left(\mathrm{m} / \mathrm{s}^{2}\right)\). What is the appropriate unit for friction factor \(f\) ?
Which one of the following equations is dimensionally homogeneous? Show your proof. a. \(F\left(x_{2}-x_{1}\right)=\frac{1}{2} m V_{2}^{2}-\frac{1}{2} m V_{1}^{2}\) b. \(F=\frac{1}{2} m V_{2}^{2}-\frac{1}{2} m V_{1}^{2}\) c. \(F\left(V_{2}-V_{1}\right)=\frac{1}{2} m x_{2}^{2}-\frac{1}{2} m x_{1}^{2}\) d. \(F\left(t_{2}-t_{1}\right)=m V_{2}-m V_{1}\) where $$ \begin{aligned} F &=\text { force }(\mathrm{N}) \\ x &=\text { distance }(\mathrm{m}) \\ m &=\text { mass }(\mathrm{kg}) \\ V &=\text { velocity }(\mathrm{m} / \mathrm{s}) \\ t &=\text { time }(\mathrm{s}) \end{aligned} $$
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