An electron and a positron are located 17 m away from each other and held fixed by some mechanism. The positron has the same mas
s and the same magnitude of charge as those of the electron, but its charge is positive. The electron and the positron are released at the same time by the mechanism. The electron and the positron begin to speed up towards each other. What velocities should they have when they are 1.3 m away from each other?
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Answer:
Explanation:
Given
Temperature of Room
Area of Person
Temperature of skin
Heat transfer coefficient
Emissivity of the skin and clothes
Total rate of heat transfer=heat Transfer due to Radiation +heat transfer through convection
Heat transfer due radiation
where
Heat Transfer due to convection is given by