Physics, 19.08.2020 17:01 savannabroyhill24
Let a metallic rod 20 cm in length be heated to a uniform temperature of 100°C Suppose that at t=0 the ends of the bar are plunged into an ice bath at 0°C and thereafter maintained at this temperature, but that no heat is allowed to escape through the lateral surface. Find the time that will elapse before the center of the bar cools to a temperature of 5°C if the bar is made of (a) silver (b) aluminum (c) cast iron. The α2 values for silver, aluminum and cast iron are 1.71, 0.86 and 0.12 respectively.
(Round your answer to two decimal places. Use two-term approximation of the series.)
For silver, it takes seconds to cool the bar to a temperature of 5°C
For aluminum, it takes seconds to cool the bar to a temperature of 5°C
For cast iron, it takes seconds to cool the bar to a temperature of 5°C
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Let a metallic rod 20 cm in length be heated to a uniform temperature of 100°C Suppose that at t=0...
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