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consider a house into which radon is emitted through cracks in the basement the total volume of the house is 650 m3
1a sandbag is dropped vertically from a balloon which is ascending at a constant speed of 6ms if the bag is released
the top floor of an office building is 40 m above street level and is to be supplied with water from a municipal
1how many grams of perchloric acid hclo4 are contained in 376 g of 705 wt aqueous perchloric acid how many grams of
a particle travels along a path defined by the parabola y05x2 if the component of velocity along the axis is vx6t with
consider a singly reinforced concrete beam with a base dimension of b 12in and d20in assume all bars are located in one
pressure variation in a fluid at rest 1 in april 2010 the deepwater horizon drilling rig experienced a severe explosion
1a reservoir has been built to supply water during droughts the design volume is 700106 m3 if the average flow into the
knowing the submerged depth of each of the 5 pressure taps and the density of water determine the calculated pressure
what is the shear strength in terms of effective stress on a place within a saturated soil mass at a point where the
an expressway off-ramp consisting of a single lane leads directly to a tollbooth the rate of arrival of vehicles at the
1if the average length of a vehicle is 15 ft and the average space between consecutive vehicles waiting to be served is
a lake with constant volume 10x106 m3 is fed by pollation free stream with flow rate 50m3s fator dumps 5m3s of
a 3 ft deep cut is to be made across an entire 25-acre site the average unit weight of this soil is 118 lbft3 and the
when the engine of the plane is running the vertical reaction that the ground exerts on the wheel at a is measured as
1from right to left a beam has a pin support on the left end and a roller support at length 2l and the rest of the beam
the dimensionless henrys constant for tce at 25 degrees celsius is 04 a sealed glass vial is prepared that has an air
vehicles a and b are traveling toward each other in the opposing lanes on a straight segment of a two-lane highway at
1rhodium has an atomic radius of 01345nm and a density of 1241gcm3 determine whether it has an fcc or bcc crystal
for a sand the maximum and minimum possible void ratios were determined to be 094 and 033 respectfully find the moist
1a sample of soil is compacted into a 944 x 10-4 m3 laboratory mold the mass of the compacted soil is 191 kg and its
an undisturbed cylindrical soil sample is 24 in in diameter and 6 in long it has a weight of 195 lb after finding the
1a strata of clean light-colored quartz sand located below the groundwater table has a moisture content of 256 the
a soil initially has a degree of saturation of 95 and a unit weight of 129 lbft3 it is then placed in an oven and dried
a 10000 ft3 mass of saturated clay had a void ratio of 0962 and a specific gravity of solids of 271 a fill was then