ENGINEERING FUNDAMENTALS
ENGINEERING FUNDAMENTALS
6th Edition
ISBN: 9781337705011
Author: MOAVENI
Publisher: CENGAGE L
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Chapter 11, Problem 33P
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Calculate the total R and U values for a double-pane-glass window in both SI and U.S. customary units.

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4. The water in a tank on the right is pressurized by air, and the pressure is measured by a multifluid manometer as shown in figure. Determine the gage pressure (kPa) of air in the tank if h₁ = 0.4 m, h2 = 0.6 m, and h3 = 0.8 m. Take the densities of water, oil, and mercury to be 1000 kg/m³, 850 kg/m³, and 13,600 kg/m³, respectively. (2 decimal)
A copper plate, with dimensions of 3 cm × 3 cm × 5 cm (length, width, and thickness, respectively), is exposed to a thermal energy source that puts out 150 J every second, as shown in the accompanying figure. The density of copper is 8900 kg⁄m3 . Assuming no heat loss to the surrounding block,determine the temperature rise in the plate after 10 seconds.
If local atmospheric pressure is 755 mm of mercury, calculate (i) the absolute pressure of air in the tank, and (ii) pressure reading at A (Figure 3).

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ENGINEERING FUNDAMENTALS

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