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1.The 8 kg vertical uniform bar AB is hinged at C and is attached at A to a spring of constant k = 500 N/m. If end A is given a small displacement and released, determine the amplification factor and the magnitude of steady state response (for deflection at A), when a horizontal force of 20Sin(8t) (N) is applied at B. (L= 250 mm, distance from center of mass to C = 40mm)
2.A recording tape passes over a 20-mm radius drive drum B and under the idler drum C. Knowing that the coefficents of friction between the tape and the drums are us=.40 and uk=0.30 and that drum C is free to rotate, determine the smallest allowable value of P if slipping of the tape on drum B is not to occur.
Steam enters the turbine of a single vapor power plant with a pressure of 10 MPa and a temperature of 580 C and expands adiabatically to 6 kPa. The isentropic turbine efficiency is 85%.
A 75g , 30cm--long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 12g ball of clay traveling horizontally at 2.5m/s hits and sticks to the very bottom tip of the rod.
Determine the mass and specific volume of argon gas in a vessel at 150 kPa and 20°C. The vessel is spherical, with radius 5 m.^5
At all other times, the wind velocity is zero. Determine for each case the ration of the total energy available from the wind to the total wind energy available at the mean velocity operating continuously
How many mL of water will it take to get 10 pounds of dry aggregate to a moisture content of 5%. 1 kg=2.2 pounds
A completely mixed activated-sludge plan is being designed for a wastewater flow of 3.0 mgd. The BOD of 225 mg/l is 200 mg/l soluble. The effluent soluble BOD requirement is 7 mg/l (70 percent of the total 10 mg/l).
Why is the torque on A and the torque on AB opposite? Wouldn't they be the same? How do we know which direction the torque is applied at A to begin with? It's not specified.
The golf ball has a diameter of 1.70 in and weighs 0.099 lb. Assuming standard atmospheric conditions (mu, u air = 3.74 * 10^-7 lb-s/ft2 and rho = 0.00238 slug/ft3)
Pure n-butane is contained in a laboratory cell in which the volume can be varied. The cell is maintained at a temperature of 200°F. The volume is changed until a few drops of liquid n-butane are present. What is the pressure in the cell
The tank material is such that it can withsatand tension caused by a volume expansion of 2%. Determine the max temperature rise in Celcius degress allowed without jeopardizing safety.
A solid ball starts to roll up a hill with an initial velocity of 50m/s. The ball has a mass of 20 Kg with a 0.75 m radius. How high did the ball roll before it momentarily stopped
During a regeneration process, some steam is extracted from the turbine and is used to heat the liquid water leaving the pump. This does not seem like a smart thing to do since the extracted steam could produce
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