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A plastic bag is filled with 1 ft3 of air at 17 degree C at atmospheric pressure. What is volume at 2 atm pressure? What is the volume at 50.5 Pa of pressure?
The acceleration of a particle traveling along a straight line is a=(8-2s) m/s2, where s is in meters. If v=0 at s=0, determine the velocity of the particle at s=2m, and the position of the particle
Which emits more SOx per unit amount of electricity produced: a coal-fired plant with a 90% efficient SO2 scrubber or an oil-fired plant with no scrubber?
The motion of a linkage in a mechanical system is examined by engineers. It has been determined that the velocity of an attachment point.
A container is supported by three cables that are attached to a ceiling as shown. Determine the weight W of the container knowing that the tension in cable AB is 6 kN.
A model rocket, weight 0.50Ibf is launched vertically from level ground. The thrust of its motor is T=3.0Ibf and lasts for 2.4secs. After the motor shuts down, the rocket behaves as a ballistic proj
Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96g/cm^3, and an atomic weight of 50.9g/mol.
C is to be 37.5 units and is to be directed at 75 degrees. Determine the magnitude of B and its direction in degrees. Scale 1mm=unity.
Determine the constant-pressure molar-specific heat c(subscript p) at 500 K and at 1000 K. Compare the magnitudes of the values at the two temperatures and discuss. Also determine c(subscript p), th
Use the generalized virial equation to speculate whether a small leak in an H2 line at 300 bar and 298 K might raise the temperature of H2 high enough to cause it to spontaneously ignite.
The maximum distance a projectile travels over horizontal ground, neglecting air resistance, is obtained if the initial projectile velocity is at 45° to the horizontal.
What is the pressure at the bottom of a 300 ft tall dam (psi)? And What is the flowrate of a river that must flow through the dam to produce 20(10)^6 watts of power (20 megawatts)?
What is the maximum height of a column of concrete that can support its own weight? Does the radius of the column matter?
A piece of electronic equipment that is surrounded by packing material is dropped so that it hits the ground with a speed of 4 m/s. After the impact the equipment experiences an acceleration of a =
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.