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1.A person (mass of 80g) is lifted upward by a 2 cm diameter safety rope with constant velocity. What is the tensile stress in the rope?
2.Calculate the volume (in ft^3) of a person of 180 lbf weight, assuming reasonable SG for the human body. Show work
3.Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured g/m^3. Assume that a cumulus cloud occupies a volume of one cubic km, and its liquid water content is 0.2g/m^3.
a) What is the volume of this cloud in cubic miles?
b) How much does the water in the cloud weigh in pounds.
The end of a 0.75-in-diameter rod is fixed to an immovable plate. The length of the rod is 18.0 in. A 50-lb weight is attached to a 16.0-in lever at the end of the Rod so that the weight is hanging perpendicular to the longitudinal axis of the rod..
The pH of clean rain is influenced by the partial pressure of CO2 in the atmosphere. In addition, acid rain can be formed when sulfur dioxide (SO2) is discharged into the atmosphere. i) The atmospheric CO2 concentration could rise to 400 ppmv by 20..
For the purposes of assessing an economy's growth performance, which is the more important statistic, real GDP or nominal GDP? Why?
Structural steel beams are to be placed at 7ft 6in on center under a reinforced concrete floor slab. If they are to support a service dead load D=64 psf of floor area and a service live load L=100 psf of floor area
A steel rod of 1/8 inch diameter is bent into a loop 10 feet in diameter. Determine the maximum flexural stress in the rod.
refrigerant 134a is compressed at steady state from 2.4 bar, 0 degrees celcius, to 12 bar, 50 degrees celcius. Refrigerant enters the compressor with a volumetric flow rate of 0.38m^3/min, and the power input to the compressor is 2.6 kW.
For a cement paste with an initial water-cement ratio of 0.5, by mass, calculate the mass and volumetric composition of 1 cm^3 of HCP under both wet and sealed curing conditions.
The aquifer is inhomogeneous with K = 12+0.006x, where x =0 at point 1, and the piezometric heads at point 1 and 2 are 14.2 m and 18.8 m, respectively measured above the upper confining layer.
acceleration of a particle traveling along straight line is a=(1/5)s^(1/2), s is in m, if v=0, s=3 when t=0 determine the particles velocity at s=6
A steel bolt and nut are tightened around an aluminum sleeve. Find the internal forces as the nut is rotated 1 turn
Neglecting the effect of altitude of local gravitional acceleration, determine the vertical distance climbed. Assume an average air density of 1.18 kg/m^3.
a particle travels along a straight line with anbspvelocity v 12-3t2 ms where t is in seconds.nbspwhen t 1 s the
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