The owner of a window-treatment company wants to design shades that will cover the windows of a house. the shades should also warm the house by maximizing the absorption of solar energy coming through the windows. which kind of material would best accomplish this task?
a. black and textured
b. black and smooth
c. white and textured
d. white and smooth
Answers: 2
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John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?
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Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.
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A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu
Answers: 1
The owner of a window-treatment company wants to design shades that will cover the windows of a hous...
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