Problem 2: IV Bag A 3 cm long needle at the bottom of a tube connected to an IV bag is used to inject saline solution located a height h above the needle. The viscosity atm of the saline solution is 1.1 mPa . s and its density is 970 kg/m3. A. The pressure at the top of the saline solution is equal to h atmospheric pressure. Compute the gauge pressure of the saline where it enters the needle, a distance of h = 0.7 m below the top of the solution as shown. You may assume that the fluid is effectively stationary here, so you can use the hydrostatic pressure equation