Physics, 20.09.2019 23:10 hearteye769
(a) in the engr 10 lab (e391), there are 50 long light bulbs (p=100 w) and 30 regular bulbs (p=60 w). how much energy is consumed lighting the lab during the 3 hour lab period. calculate the amount of energy saved if all bulbs are replaced by cfl (spiral) bulbs (p=25w). (3 points) san josé state universitye10 introduction to engineeringe10 introduction to engineering | energy power |page 3 of 3 (b) continuing from (a), calculate the amount of natural gas (ft3) needed to provide the energy to keep the lights (long + regular) in the e391 lab on overnight for a month (10 hours per day for 30 days)? in other words, how much extra energy (in terms of cubic feet of natural gas) does sjsu have to purchase when we don’t turn off the lights in a lab. (note: you’ll have to look up the energy in one ft3 of natural gas and cite your source) (3 points)
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(a) in the engr 10 lab (e391), there are 50 long light bulbs (p=100 w) and 30 regular bulbs (p=60 w)...
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