You have the following options for covering the outside (wall) of a house: common brick with a thickness of 5.5 cm cement plaster (sand aggregate) (similar to adobe) with a thickness of 2.4 cm aluminum siding with a thickness of 1.2 cm (pure aluminum-for now, ignore any air gaps) hardboard siding with a thickness of 3.8 cm to reduce air conditioning costs, you want to minimize the heat flux across the wall. which material do you choose, and why? which material would be the worst for insulation? (when comparing, assume the same surface temperatures on the outside and inside of the wall; ignore layers internal to the materials above, as they will be the same in each case) note: use appendix a.1-a. 3 to find k values. you may assume a temperature of 300 k for looking up the properties.