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a room 4x5x6 meter is heated by a baseboard resistance heater we want the heater to raise the room temperature from 7
1a frictionless piston-cylinder contains 2kg of nitrogen at 100 kpa absolute and 300 deg k the system is compressed
1a saturated clay deposit is vane-tested in-situ a torque of 30nm is required to shear the clat the vane is 40mm wide
a river is 6m deep the riverbed material has a saturated unit weight of 195knm3 what is the effective vertical stress
for a given hypothetical flow the velocity from time t0 to t5 seconds was u2 ms v0 then from time t5 s to t10 s the
1a component that is made of s-590 alloy is to be subjected to a static stress of 400 mpa at a high temperature using a
1the heat resisting alloy s-590 is used for a component that will be exposed to 700degc with a safety factor of two on
the azimuth from station a of a link traverse to an azimuth mark is 212o 12 36 the azimuth from the last station of the
the river flow at an upstream gauging station is measured to be 1500 m3s and at another gauging station 3 km downstream
1a whirlpool is modeled as the combination of a free and a forced vortex the maximum velocity in the whirlpool is 10 ms
a 03 meter cubed rigid tank is filled with saturated liquid water at 200 degrees celsius a valve at the bottom of the
the cash flow of alternatives j and k is shown below if the interest rate is 10 per year which alternative should be
1the cost of extending a certain road is 850000 resurfacing and other maintenance are expected to cost 175000 every 3
1a torque of magnitude t 1000nm is applied at d as shown knowing that the diameter of shaft ab is 56 mm and that the
the if the probability that fluorecent light has a useful life of at least 500 hours is 085 find the probabilities that
suppose that the probabilities are respectively 06 02 01 and 01 that an income tax form will be filled out correctly
over the range of cylindrical parts manufactured on a computer-controlled lathe the standard deviation of the diameters
for the following waste and river characteristics just upstream from the outfall find the minimum downstream do that
two routes connect an origin and a destination and the total trips between them is 15000 vehhr route 1 has a free flow
1in a falling-head permeability test the initial head of 15m dropped to 05m in 4 h the diameter of the standpipe being
1an aerosol with a lognormal size distribution has a count median diameter of 20 micron and a geometric standard
a layer of sand extends from ground level to a depth of 11m and overlies a layer of clay of very low permeability 8m
perform a material balance on substrate s around a chemostat completely mixed reactor without recycle assuming a
write a computer program that generates a sequence of binomial random variables with parameters n20 and p03a use the