Most systems use a flap door that swings about ___________ degrees
A) 10 to 25
B) 25 to 40
C) 45 to 90
D) 90 to 120
C) 45 to 90
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One day has the sun shining for 
? of the day. Determine the time a solar collector could collect heat on this day.
Fill in the blank(s) with the appropriate word(s).
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How does the fuel and air mixture get from the bottom of the crankcase to the combustion chamber in a two- stroke engine?
What will be an ideal response?
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What type of habitat is required for chameleons?
What will be an ideal response?
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Carry the answer to four decimal places. How much larger is the diameter of number 11 wire than that of number 16 wire?
Fill in the blank(s) with the appropriate word(s).
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