Physics, 03.12.2019 07:24

# Calculate the total heat content of 10 kg of ice at -23°c. (hint: a substance at absolute zero, -273 degrees c, has 0 heat content.)

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Physics, 02.02.2019 18:40

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.

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Physics, 31.01.2019 15:59

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

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Physics, 31.01.2019 05:54

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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Physics, 30.01.2019 00:50

If the capacitor is charged to 250 v, what fraction of the charge will flow across the air gap in 1 minute? make the approximation that the potential difference doesn't change as the charge flows.

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Calculate the total heat content of 10 kg of ice at -23°c. (hint: a substance at absolute zero, -27...

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