Physics, 29.07.2019 02:20 mdaniella522
Your boss tells you that she needs a decision by the end of the day about the machine you want to purchase for your new operation. you have four options, and your boss reminds you to be as cost-efficient as possible but that she also wants the best efficiency. which is your best option? option 1: this $5,000 machine is supplied energy at a rate of 1,900 w and does useful work at a rate of 1,786 w. option 2: this $4,500 machine is supplied energy at a rate of 1,450 w and does useful work at a rate of 1,300 w. option 3: this $4,750 machine is supplied energy at a rate of 1950 w and does useful work at a rate of 1833 w. option 4: this $4,750 machine is supplied energy at a rate of 2,000 w and does useful work at a rate of 1,822 w. a. option 4 b. option 3 c. option 1 d. option 2
Answers: 1
Physics, 21.06.2019 19:00
Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.
Answers: 2
Physics, 21.06.2019 23:30
Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?
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Physics, 22.06.2019 06:30
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
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Physics, 22.06.2019 10:20
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
Your boss tells you that she needs a decision by the end of the day about the machine you want to pu...
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