Question: I need the answer as soon as possible 07. A short cylinder (length-diameter) of granite (k=2.9 W/mC) initially at a temperature of 90-C is suddenly

I need the answer as soon as possible

07. A short cylinder (length-diameter) of granite (k=2.9 W/mC) initially at a temperature of 90-C is suddenly immersed in a fluid at 20C. The convection heat-transfer coefficient is 10W/m C. Determine the dimension of the cylinder that it is just considered as humped-capacity system. Calculate the time the center of the cylinder reaches 45" and the heat loss from the cylinder at that time

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