A box with inside area of 2.0m2 is covered with an unknown 0.175m of insulation material. Determine the thermal conductivity for the insulating material if a 63 W bulb is used to heat the box. The bulb maintains the inside temperature at 28oC higher than the outside temperature. Round to three decimal places. Show all work on your recording sheet for partial credit.

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.