One British thermal unit (Btu) contains ____ calories.
A. 144
B. 212
C. 252
D. 970
Answer: C
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Which of the following statements are true about direct and indirect lighting? Select all that apply.
A) Indirect lighting produces less glare but more shadows than direct lighting. B) Indirect lighting can use equal or less power to produce higher quality light. C) Indirect lighting uses less energy than direct to produce equal illumination. D) Most people would prefer to work under direct lighting.
Compressed gases produce heat because of molecular friction.
a. true b. false
List the downfalls in the second shift method of meeting demand
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