Engineering, 26.11.2019 02:31 emfastback8868
Design two independent experiments to determine the specific heat of the given object that is made of an unknown material. you have a sample of unknown specific heat, water, a thermometer, ice-water, a heating pot, a dewar (okay, really just three nested foam cups, but still a pretty well insulated container), a balance, graduated cylinder, and miscellaneous foam cups, paper towels, tongs, and other hardware. by all means, look up known properties of water. also, even if you haven’t done it regularly before, today might be a very good day to consider repeating your various experiments to judge their reliability and merits probably at least 3 trials per experiment would be advisable.
Answers: 2
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Engineering, 04.07.2019 18:20
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
Engineering, 04.07.2019 18:20
Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency
Answers: 1
Design two independent experiments to determine the specific heat of the given object that is made o...
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