If the distance and observed potentiometric surface between two adjacent wells are 1000 m and 3 m, respectively. Find an estimate of the time it takes for a molecule of water to move from one well to the other. Assume steady 1-directional flow in a homogenous silty sand confined aquifer with hydraulic conductivity of 3.5 m/day and effective porosity of 0.35.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.