The 10-year idf curve for baton rouge is given as follow:

i = 60.86/ (t+6.75)^0.72

where i is the rainfall intensity in in/hr and t is the rainfall duration in minutes. if soil type for an area in baton rouge is sandy loam. the depression storage is 0.4 inches. for a 10-year 1-hour storm with uniform rainfall intensity, use the green-ampt method to calculate ponding time, tp, and the total infiltration (mm) at t = 1 hour.

for sandy loam, saturated hydraulic conductivity ks =11 mm/hr, porosity n = 0.453, initial soil moisture content thetai = 0.1375, and soil suction head at wetting front phif =110 mm.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false