Answers: 3
Physics, 21.06.2019 21:00
Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?
Answers: 2
Physics, 21.06.2019 22:00
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 Ā· k is used to store hot water and to keep it at 100Ā°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 120Ā°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 100Ā°c this tank can supply steadily if the cold water enters at 20Ā°c.
Answers: 2
Physics, 22.06.2019 02:20
22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.
Answers: 2
Physics, 23.06.2019 00:00
Why does a collision with an airbag cause less damage than a collision with a steering wheel
Answers: 1
Two identical conducting spheres are charged with a net charge of +5.0 q on the first sphere and a n...
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