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Find the moment of the 12-n force about the origin. The force is parallel to the x-axis and 5cm in the y-direction and 12cm in the x-direction.
At what rate must water pass through the hydraulic turbines of this dam to produce 100MW of power if the turbines are 100 percent efficient?
Derive an expression for the bounding energy Eo in terms of the equilibrium interionic separation ro and the constants D, and p using the following procedure:
f 1 mole/min of a mixture is 75 mol% n-pentane and 25 mol% n-hexane is fed continouosly to equilibrium flash chamber operating at 30 degrees C and 500 mm Hg, what are the flow rates of the liquid an
Two identical asteroids travel side by side while touching one another. If the asteroids are composed of homogeneous pure iron and are spherical, what diameter in feet must they have for their mutua
A cylindrical pressure tank 15 feet long and 40 inches in mean diamater is to be fabricated from .5 inch steel. What is the average shear stress in the adhesive if the pressure on the inside of the ta
Two flash distillation chambers are hooked together. Both are at 1 atm pressure. What is the friction vaporized in the first flash drum.
There is no friction, and the tension in the cord is just sufficient to make the contact force between C1 and C2 zero. Find: a) the tension in the cord, b) the force exerted by the ground on C1, c)
Resolve a vector A which has a magnitude of 50 units and a direction of 210 degrees into two vetors B and C. C is to be 37.5 units and is to be directed at 75 degrees.
Determine the final temperature of the water. Use the incompressible substance model for the water and the copper with specific heats of c of the copper = 0.385 kJ/(kg x K).
Determine the mass of the water and the magnitude and direction of the work and heat transfer for the process. Sketch the process on a p-v diagram.
Refrigerant 134a undergoes a constant pressure process from saturated vapor at -18.8°C to a final temperature of 20°C. Determine the work for the process, in kJ per kg of refrigerant.
Determine the final temperature and the change in volume for the process. Sketch the process on a p-v diagram. Neglect changes in kineticand potential energy.
Explain the concept and benefit of the following machinery: (a) Computer Numerical Control, CNC (b) Electrical Discharge Machining, EDM (c) Rapid Prototype, RP.
If the stiffness of the spring is k = 80 N/mm and the damping constant is c = 20 N-s/mm determine the maximum diplacement of the car after engaging the springs and damper.
Identify the material used to produce each component of the following products, and explain their desirable properties: (a) lecture chair, (b) helmet, and (c) computer desk.
Determine the velocity and the acceleration of the slider and w32and alpha32 by a- using vector b- velocity an the acceleration polygon.
The 2000 lb load can be moved along the beam BD to any position between stops at E and F. Knowing that σall=6ksi for the steel used in rods AB and CD, determine where the stops should be place
A piston-cylinder device initially contains .35 kg steam at 3.5 MPa, super-heated by 7.4 C. Now the steam loses heat to the surroundings and the piston moves down, hitting a set of stops at which po
The rod is in an air environment with Tinfinity = 20 degree C. What is the temperature of the rod 25, 50, and 100 mm from the casting?
In the mass production of a certain mechanical part, the average length of the part is 10.500 inches. The lengths of many parts follow a normal distribution.
The pressure gauge at point 1 (the inlet) reads 25 psig and the pressure gauge at point 3 (an outlet) reads 20psig. What is the pressure at point 2 (another outlet)? Can the Bernoulli's equation be
Calculate the specific volume of Carbon Dioxide: 10 degrees Celsius and 80% quality?Calculate the specific volume of Water: 4MPa and 90% quality
Calculate what at what depth a person will no longer be able to open the door of their vehicle while the passenger compartment is still filled with air.
The pressure in a garden hose is 60 psi. and the hose is 1.5 cm in inner diameter. The water exits in a stream 3mm in diameter.