The correct statement about the relation between the shear stress (force) at the surface for laminar and turbulent flow over a flat plate is. o the laminar shear stress is greater because the fluid viscosity is not important in turbulent flow o the turbulent shear stress is greater because the mixing dissipates more energy, producing a greater stress at the wall o the laminar and turbulent shear stresses are equal at the same position (x) along the plate, but since turbulence occurs farther down the plate it produces a higher shear stress the laminar shear stress is less because the boundary is thinner in the laminar regime.

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.