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A piston-cylinder device contains 6 kg of H2 and 21 kg of N2 at 160 K and 5 MPa. Heat is now transferred to the device, and the mixture expands at constant pressure until the temperature rises to 200 K. Determine the heat transfer during this process by treating the mixture (a) as an ideal gas and (b) as a non-ideal gas and using Amagat's law.
The James River flows in from the East at 50 m^3/s and joins the Jackson River flowing at 500 ft^3/min just outside Charlotte, NC. The turbidity in the James River is 6.8 NTU.
The power, P, required by an agitator in a tank is a function of the following variables, diameter of the agitator, D, Frequency of the impeller rotation, w (1/s), Viscosity of liquid, u (lbss/ft^2) and the density of the liquid ,p (slugs/ft^3)
compute the allowable load on a column with fixed ends if it is 5.45 meters long and made from an S150 x 18.6(S6 x 12.5) beam. The material is ASTM A36 steel. Use the AISC formula.
For simplicity assume the catapult consists of the piston-cylinder geometry (with the piston as the projectile) and that it is positioned horizontally. The steam initially occupies a volume of 1 liter at a pressure of 200 kpa.
Given the initial effective stress state at a point within a soil mass (s_y=2.5 daN/cm2, s_x=1.5 daN/cm2, t_xy=t_xy=0.4 daN/cm2) and effective soil shear strength parameters at the same point (friction angle=30 degrees, cohesion=0.5 daN/cm2)
An object has a mass of 46kg and weighs 450N on a spring scale. Determine the acceleration due to gravity at this location.
he City of Leeds (England) discharges about 1.4 m3/sec to the Aire River. Without the wastewater discharge, the river flow rate would be 12.7 m3/sec. Given that BOD(river) = 3.0 mg/L and BOD(wastewater) = 30.0 mg/L
The piezometers are 280 m apart. The difference in piezometric head bewteen the two is 1.4 m. The aquifer hydraulic conductivity is 50 m/d and the porosity is 20%.
Are all the types of requirements covered (environmental,performance, etc). If not, what areas need to be covered byadditional requirements to make the list of requirementscomplete.
A fully penetrating well of 30 cm diameter in an unconfined aquifer of saturated thickness 50 m was found to give the following draw down - discharge relationship under equillibium condition.
The 5.5 Mg humpback whale is stuck on the shore due to changes in the tide. In an effort to rescue the whale, a 12-Mg tugboat is used to pull it free using an inextensible rope tied to its tail
An open channel has a vee shaped cross section with sides inclined at an angle of 60o to the vertical. If the rate of flow is 80 dm^3 s^-1 when the depth at the centre is 0.25 m, what must be the slope of the channel assuming Chezy's constant is 45..
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