Question: This is Differential Equations problem.Provide clean and clear solutions thank you. 1. A metallic rod at a temperature of 120 F is placed in a

This is Differential Equations problem.Provide clean and clear solutions thank you.

1. A metallic rod at a temperature of 120 F is placed in a room at a constant temperature of 10"F. If after 25 minutes, the temperature of the bar is 70'F, find (a) the time it will take the rod to reach a temperature of 35F and (b) the temperature of the bar after 50 minutes

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