$1.$ Can both steps of the cooling process be modeled using Lumped Parameter$/$Lumped

Capacitance?

$2.$ Which will take a longer time air cooling or water quenching? Justify your answer

based upon the Biot number. Explain in terms of physical phenomenon not simply

numerical reasoning. Determine the time of the process you selected.

$3.$ Determine the total energy removed from the gold ingot.

$4.$ If the conveyer belt is $75$m in length specify the belt speed such that when an ingot

reaches the end of the belt it is at the desired temperature.

$5.$ If you increase the belt speed what must be done to ensure the ingot reaches a tem$-$

perature of $20$oC at the end of the belt?