A cylindrical surface of radius 43 cm and length 2.4 m maintained at a temperature of 120°C is continuouslyemitting radiations. If the emissivity of the surface is 0.8. (consider: Stefan's constant o = 5.67 x 10-8 W/m²T*)Calculate the rate of heat energy radiated in Watts =A 83.69 gram copper metal is heated to 122°C and dropped into 126.72 gram of water at an initial temperatureof Tw. When equilibrium is reached the temperature of copper-water mixture is 25.2°C. Calculate the initialtemperature of water? If the specific heat of copper is 385 J/kg°C and Specific heat of water is 4186 J/kg°C.Initial temperature of water in (°C) =

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A cylindrical surface of radius 43 cm and length 2.4 m maintained at a temperature of 120°C is continuously emitting radiations. If the emissivity of the surface is 0.8. (consider: Stefan's constant o = 5.67 x 10-8 W/m²T4) Calculate the rate of heat energy radiated in Watts =

A cylindrical surface of radius 43 cm and length 2.4 m maintained at a temperature of 120°C is continuously emitting radiations. If the emissivity of the surface is 0.8. (consider: Stefan's constant o = 5.67 x 10-8 W/m²T4) Calculate the rate of heat energy radiated in Watts =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A cylindrical surface of radius 43 cm and length 2.4 m maintained at a temperature of 120°C is continuously
emitting radiations. If the emissivity of the surface is 0.8. (consider: Stefan's constant o = 5.67 x 10-8 W/m²T*)
Calculate the rate of heat energy radiated in Watts =
A 83.69 gram copper metal is heated to 122°C and dropped into 126.72 gram of water at an initial temperature
of Tw. When equilibrium is reached the temperature of copper-water mixture is 25.2°C. Calculate the initial
temperature of water? If the specific heat of copper is 385 J/kg°C and Specific heat of water is 4186 J/kg°C.
Initial temperature of water in (°C) =

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