Question: By use PDE thought, If it takes a 2 cm long insulated bar 7 minutes to cool down to room temperature, how long does it

By use PDE thought, If it takes a 2 cm long

By use PDE thought, If it takes a 2 cm long insulated bar 7 minutes to cool down to room temperature, how long does it takes a 6 cm bar (made of the same material)? Explain.

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