February 20, 2017

Homework Help: Physics

Posted by Steve on Friday, March 25, 2011 at 10:47pm.

How do i get the answer
A steel ball of diameter Lb = 4.196 cm is placed on a hole of diameter Lh = 4.042 cm on an aluminium plate. The initial temperature is 14 ¢XC. What would be the minimum temperature so that the ball will fit through the hole if both are heated? The linear expansion coefficients for steel and aluminium are £\steel = 1.100 ¡Ñ 10¡V5 K¡V1 and £\alu = 2.200 ¡Ñ 10¡V5 K¡V1, respectively. ans 3610 degrees celcius

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