1.The power requirements of an 85% efficient pump that transports water ar 0.04m^3/s, if it increases the pressure by 1 MPa. What is the answer in kW
2.The pressure drop over 15 m of 2-cm diameter galvanized iron pipe is measured to be 60 Pa. If the pipe is horizontal, estimate the flow rate of water. use for water v=10^-6 m^2/s and density of water = 1000kg/m^3
3.Payments of $1000 are to be made at the end of each year for the next 3 years. What is the present worth of the three payments if interest is 12% compounded monthly? what series of monthly payments would be equivalent to the $1000 year payments?