Select the correct answer. Which existing technology did engineers use to enhance the speed of propeller-driven airplanes
1 answer:
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Answer:
Total saving would be of 36.917 $\yr
Explanation:
Given Data:
Degree F
Degree F
A = 30 ft^2
%
Heat loss before previous final value
= 360 Btu/hr
Heat loss after new value
saving would be
= 616.1782 kw hr/yr
$
= 36.917 $\yr