please answer clearly with steps

1. A fluid has the following properties: =0.85Ns/m2=950kg/m3 Assume the fluid flows in a pipe with a diameter of 2cm and a length of 15m. a) If Q=2.5105m3/s, what pressure drop is needed to produce a flow rate? b) How steep a hill, , must the pipe be on if it flows at the same rate as (a), but p1=p2? c) For the conditions in part (b), if p1=100kPa, what is the pressure in the middle of the pipe