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A homeowner in Harrisonburg has asked you for help on the economic feasibility of using solar power for hot water heating. Electric power costs $0.07/kW.hr and a single-pane flat plate solar collector system cost about $22 per ft2 of collector area. The daily mean insolation in Harrisonburg is 1250 Btu/ft2 .day.
a) What is the cost of electric power in $/106 Btu?
b) What is the cost of energy saved daily per ft2 by using solar power instead of electric power, if the average collector efficiency is 35%?
c) What is the payback period in years?
You need to rewrite the report with cover page - Dead weight tester: working principle by pascal law, hydraulic pressure or giving pressure by rotating, 200 pascals high rang and 10 pascals low rang
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A simple fundamental equation, which exhibits some of the thermodynamic properties of solids is: U(s, v) = Aeb(v-v_0)^2S4/3eS/3R. Show that the thermal expansion coefficient of the solid vanishes at 0 pressure
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The tank rests on a smooth surface, and to prevent it from sliding, a horizontal flexible cable is to be connected to hooks on either the right or left side of the tank. Assuming the cable can only support a tensile force, would you connect it to ..
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find the best fit Gaussian Curve through the data and plot the data and curve on the same graph.
Calculate the period of the resulting beat - An airplane wing modeled as a spring-mass system with natural frequency 40 Hz is driven harmonically by the rotation of its engines at 39.9 Hz.
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