Perform the following operations involving eight-bit 2’s complement numbers and indicate whether arithmetic overflow occurs. check your answers by converting to decimal signand-magnitude representation. 00110110 01110101 110 + 01000101 + 1100 + 10111000 00110110 01110101 11010011 − 00101011 − 11010110 − 11101100

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.