Two aisi 304 stainless steel plates 9 mm thick are subjected to a contact pressure of 1 bar under vacuum conditions for which there is an overall temperature drop of 110°c across the plates. (a) what is the heat flux through the plates? (b) what is the temperature drop across the contact plane? use r"t, c=15 x 10-4 m2·k/w and evaluate the properties of stainless steel at 400 k.

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.