Suppose the temperature of a sphere object is 35 °C and its surroundings are at 20 °C. What is the net energy loss from this object in 30 seconds by radiation (in KJ unit)?. Assume that the emissivity of object e = 0.900, the radius of object = 35 cm and o = 5.67×108 W/m².K“.

Suppose the temperature of a sphere object is 35 °C and its surroundings are at 20 °C. What is the net energy loss from this object in 30 seconds by radiation (in KJ unit)?. Assume that the emissivity of object e = 0.900, the radius of object = 35 cm and o = 5.67×108 W/m².K“.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 128CP: As the very first rudiment of climatology, estimate the temperature of Earth. Assume it is a perfect...

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Suppose the temperature of a sphere object is 35 °C and its surroundings are at 20 °C. What is the
net energy loss from this object in 30 seconds by radiation (in KJ unit)?. Assume that the emissivity
of object e = 0.900, the radius of object = 35 cm and o = 5.67×108 W/m².K“.

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