matlab tank containing benzene at a concentration of 1500 mg/L was overturned and spilled to a saturated layer over an area of 5 m2 . The groundwater velocity of the saturated layer is 0.45 m/day. Assume DL and DT are 2.5 and 0.25 m2 /day respectively. Assume xo = 0 and yo = 0 for the location of the tank. The monitoring well is at x =80 m and y = 5 m. What would be the concentration after 200 days of benzene spills? Assume no biodegradation and chemical reaction inside saturated zone

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um