3. What is the laminar flow rate of water in a pipe with an internal radius of r and a length of Lm if the pressure difference across the pipe is 2.0 kPa? The water in the pipe has a viscosity of approximately 0.6 mPa-s. (4 pts) Let r = 0.03 meters and L = 3.00 meters c. Describe the effect on the flow rate given each of the following changes. Each change is to the original system and all other variables are held constant. (1 pt each) The radius decreases The pipe length decreases The fluid viscosity decreases .2 The pressure difference decreases