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Determine the diameter of glass tubing that is necessary for the capillary rise to be less than 0.5 mm. Assume the fluid is water with surface tension equal to 0.0728 N/m and specific weight equal t
An empty air tank has a volume of 0.024 m3. The compressor on the tank is run until the pressure gauge reads about 65 psi (or 22,500 Pa). Assuming the temperature of the tank is 25 C, find the densi
What is the vapor pressure of carbon dioxide in the bottle before it is opened (i.e., when it is at equilibrium) assuming no other ions are present besides those related to CO2 and water
According to information found in an old hydraulies book, the energy loss per unit weight of fluid flowing through a nozzle connected to a hose can be estimated by the formula h=(0.04 to 0.09)(D/d)^
For some minerals color is a diagnostic property making identification rather easy. However, certain minerals can also occur in a wide variety of colors making color a poor tool for identification.
A civil engineering student contends that 60 mph is safe in a van because of the higher driver's eye height. If all other design inputs are standard, what must the driver's eye height in the van be
The outside and inside diameters of 75 mm and 63 mm, respectively. A strain gauge is placed on the outside of the hollow segment of the tube to measure normal strains in the longitudinal direction.
If a single deposit of $15,000 is invested at 2.75% yearly interest, what equal year-end withdrawls can be made each year for 10 years, leaving nothing in the fund after the 10th withdrawl
Suppose the average concentration of SO2 (SOsub2) is measured to be 400microgram/cu.m at 25degree celcius and 1 atm. Does this exceed the (24-hr) air quality standard of 0.14 ppm
A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16-inch-radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is known t
Determine the flow rate of water (20 degrees celcius) that will cause a pressure drop of 17250 N/m^2 in 350m of horizontal, cast-iron pipe (d=60cm). assume minor losses are negligibe
A 2014 Ford Mustand convertible in 'Gotta have it Green Metallic' is retailing for $38,000. If you put $3,500 down on the vehicle, and obtain approval for a 2.19% car loan compounded monthly for 5 y
A soil sample is obtained by pushing a 16 inch long tube into the side of a pit. The tube has an inside diameter of 3 inch and weighs 1.8 lb. The soil in the tube is trimmed so that its ends are fl
A stockpile of gravel that has a water content of 6% is rained on so that its water content increases to 9%. Compute the difference in the weights of dry gravel in a 10 ton truckload taken from the
As a highway patrol officer, you are patricipating in a speed trap. A car passes your patrol car which you clock at 55 mph. One and a half minutes later, your partner in another patrol car situated
Force F with magnitude indicated acts at point o. determine the magnitudes of the components Faa and Fbb along directions a-a and b-b so that F=Faa+Fbb
The velocity distribution for water (20 C) near a wall is given by u=a(y/b)^1/6 where a=10m/s, b=2mm, and y is the distance from the wall in mm. Determine the shear stress in the water at y=1mm. [vi
A radar device is installed at a location on the roadside to measure instantaneous speeds of vehicles passing that location. The initial four vehicles' speeds are listed. Calculate the space-mean sp
describe the measurements that would have to be taken and the equations that would have to be used to determine G23, V32, and E2 for a specially orthotropic transversely isotropic material from a si
A 3-ft diameter column with weight of 150 kg is placed on top of 1 m thick aggregate layer. The soil beneath the aggregate layer is sand. The friction angle of the aggregate is 36 degrees and the un
A sky diver with a mass of 75 kg jumps from an aircraft. The aerodynamic drag force acting on the sky diver is known to be Fd = kV^2, where k = 0.228. Determine the maximum speed of the free fall fo
The transportation agency would like to determine the maximum spacing of stations to allow trains to arrive no more than 5 minutes apart. 1. Draw a time-space diagram depicting the above scenario
At an axial load of 23 kN, a 40-mm-wide by 10-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.17 mm. The bar is 240 mm long. At the 23-kN load, the stress in the poly
During a 108 minute long storm, the precipitation rate over a 100 acre area is 1.65 in/hr. The phi index is 0.42 in/hr. The average outflow from the area is 92 cfs during the storm. What is the valu
Determine the specific surfaces in m2/g units for the spheres of diameters (a) 10.0 cm, (b) 1.0 cm,(c) 0.1 cm, (d) 0.01 cm. (e) 0.001 cm and (f) 0.0001 cm. Assume the mass density of spheres as 2.5g