Physics, 10.12.2020 19:50 lilycious3986
Hydrogen fuel cells combine hydrogen and oxygen to produce water and energy. How much energy is produced by this fuel cell? (Hint: Use E = mc^2.)
Answers: 1
Physics, 21.06.2019 22:00, natethawsm
Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.
Answers: 2
Physics, 22.06.2019 10:00, mathscience9301
Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.
Answers: 2
Physics, 22.06.2019 10:10, princeofpowerjr
Which branches of natural science include the study of an organism that lived 10 million years ago
Answers: 1
Physics, 22.06.2019 14:00, janreyes39
Explain why you think this diagram shows what happened to the carbon in the biodome.
Answers: 2
Hydrogen fuel cells combine hydrogen and oxygen to produce water and energy. How much energy is prod...
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