You are a water resources engineer designing an irrigation canal that parallels a river for a distance of 35 km. Between the canal and river is an alluvial aquifer with 12 m depth above a confining layer. The mean distance between the planned canal and river is 0.1 km and the alluvium has hydraulic conductivity (Kh) = 0.15 mm/s. Mean water level in the river is 300 m above mean seas level and mean water level in the canal will be 302 m above mean sea level. Estimate:a. the seepage loss rate from the canal to river per 1 km length of canal in cms.

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?