QUESTION 12A copper rod of radius 1.5 cm and length 0.8 m is used in stoking a fire which is at 415 °C. Find the rate of heat transfer (in W) if the room is at 20 °C.Note the thermal conductivity of copper is 390 J/(s m °C).QUESTION 13A car parked in the sun absorbs energy at a rate of 760 W per square metre of surface area. Treating the car as a perfect radiator (e=1) find thetemperature (in Kelvin)QUESTION 14A balloon contains 0.300 m3 of Helium at a pressure of 1.100 x 10° Pa. The temperature of the helium is 310 K. What is the mass (in kg) is the heliumin the balloon?

Part (12): Given: The radius of the rod is 1.5 cm. The length of the rod is 0.8 m. The temperature…

QUESTION 12 A copper rod of radius 1.5 cm and length 0.8 m is used in stoking a fire which is at 415 °C. Find the rate of heat transfer (in W) if the room is at 20 °C. Note the thermal conductivity of copper is 390 J/(s m °C).

QUESTION 12 A copper rod of radius 1.5 cm and length 0.8 m is used in stoking a fire which is at 415 °C. Find the rate of heat transfer (in W) if the room is at 20 °C. Note the thermal conductivity of copper is 390 J/(s m °C).

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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