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at the instant shown car a has a speed of 20 kmh which is being increased at the rate of 300 kmh2 as the car enters an
a parachutist having a mass of 60kg is falling at 8ms when the parachute is opened due to atmosphere drag the
1 an activated sludge plant is to be designed for a population of 4000 persons the influent flow is 380 lpcd and the
clay weights 3000 lbcu yd on its natural statebcy after excavating the soil weight is 2310 lbcu yd after transporting
on a shoveltruck operation the production of the shovel is 293 bcyh and a job efficiency of 075 the trucks used have a
as more complete mixed reactors in series are provided the system becomes more plug flow for a substance that decays
1compare the total reactor volume required for 90 removal of a substance that decays according to first-order kinetics
estimate the hourly production and unit cost of rock excavation by drilling and basting the rock is limestone having a
in its natural condition a soil sample has a mass of 2400 g and a volume of 115 x 10-3 m3 after being completely dried
1a river is 6 m deep the riverbed material has a saturated unit weight of 195knm3 what is the effective vertical stress
undrained shear box tests were carried out on a series of soil specimens with the following resultstotal normal stress
a shallow foundation of length 8 m and width 3 m is constructed it exerts a uniform downwards pressure of 300 kpa on
a river is 6 m deep the riverbed material has a saturated unit weight of 195knm3 what is the effective vertical stress
annual maintenance cost for a particular section of highway pavement are 2000 the placement of a new surface would
a trust fund is to be established for the three purposes 1 to provide 750000 for th construction and 250000 for the
an investor has invested 250000 in a new rental property her estimated annual costas are 6000 and annual revenues are
a a galvanized zinc-coated steel sheet is found to uniformly corrode with an average current density of 14 x 10-7 acm2
the mechanical properties of aluminum may be improved by incoporating fine particles of lauminum oxide al2o3 given that
for a car traveling 35 mph the distance required to brake for a stop is normally distributed with mean of 55 feet and
a company manufactures a brand of light bulbs with a lifetime in month that is normally distribute with a mean3 and a
the number of telephone call coming in the business switchboard average 4 minutescall let x be the number of calls
1what is the largest circle that can be inscribed within a polygon with corner coordinates 600800 900 300 500 100 and
a hydraulic shovel will be used to excavate sandy clay and load into a 12 bcy dump trucks the shovels production at a
1the amplitude and the period of y2cos-pi4x and sketch the graph of this function make sure to indicate key points on
atlas long-haul transportation is considering installing valutemp temperature loggers in all of its refrigerated trucks