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The water level in the dam is upto the brim of the wall. Calculate the average pressure (in kPa) on the inclined wall because of the water. g= 10 m/s^2. Type your answer in kPa, to the second decima
Determine the critical load on a steel column having a square cross section 12 mm on a side with a length of 300 mm. The column is to be made of AISI 1040, hot-rolled.
Assuming isentropic efficiencies of 80 percent for both the turbine and the compressor, determine (a) the minimum temperature in the cycle, (b) the coefficient of performance, and (c) the mass flow
Determine the entropy generated for carbon dioxide in a piston/cylinder with an initial volume of 200 L at 300 degrees C, 1 MPa.
Convert the following pressures into absolute presuures. you may assume that the atmospheric pressure at the time of measurement was a standard atmosphere.
Find the heat transfer and work for each component. Find the entropy production for each component. Rank the components form most entropy production to least.
Calculate the volume flow rate of water through the pipe if the pressure difference between the inlet and the throat is 34.5 kN/m2. Take the density of water as 997 kg/m3.
If the velocity of a 1" ID pipe is determined to be 0.2 ft/s by a Transit Time flow meter, what if the Volume flow rate? is the flow laminar or turbulent if the kinematic viscosity if 1.002 cSt?
Determine the entropy change of the air. Will this process occur or not if there is only 200kJ transferred to the surrounding of 20oC during this process?
Calculate the entropy change of each reservoir, entropy generation during this process, and determine if the 2nd law is satisfied.
Optimus Prime is flying straight up at 67 m/s when he accidentally drops his mega-ray blaster and it falls 76 m to the ground below. Calculate how long it takes for his mega-ray blaster to hit the
The power input to the steam is known to be 500 W. Determine the maximum rate (J/s) at which heat can be transferred from the cold reservoir.
Assume the cost of electricity is 8.9 cents per kW.h. Determine the hourly cost of running the pump if the pump efficiency is 80%.
Find the acceleration relative to the ground of the highest point of the wheel. Find the acceleration relative to the ground of the point at the very front of the wheel.
If his mass is 53 kg, the stiffness of the cord is 41 N/m, and the height of the bridge above the water is 95m what is the unstretched length of the cord? what is his velocity at the midway point?
Air enter the heating section at 100 kPa and 17 C with a volumetric flow rate of 2.5 m^3/s. If the air leaves the duct at 22 C determine the heat that was lost from the air to the surroundings in WA
3 kg of R22 in a piston-cylinder is initially at a pressure of 0.30 MPa and volume of 0.15m^3. The system is then heated by 305 kJ and the piston expands slowly.
Determine the head loss associated with the pump if the inlet pressure is 90 kPa and the out- let pressure is 300 kPa.
The designer needs to know the modulus of elasticity, E, of the Al2O3 component to properly complete a system designin which the component will be used. Estimate the modulus of elasticity.
Determine the minimum mass in (kg) of a 24 in long tension member that must support a load of 1,000 lbs, manufactured from a) AS-rolled 1080 steel and b) copper?
If the mean radius is 0.24 m and this is constant throughout the compressor, calculate the total-to-total isentropic efficiency of the compressor
Calculate the ratio of the original and etched crack tip radii for a eight-fold increase in fracture strength if two/ thirds of the crack length is removed.
An existing supply of 5-mm diameter music wire will be used. The spring is to be preset. Determine appropriate values for D, N, and Lf. Check for possible buckling.
Vector A has components Ax = 1.24 , Ay= 2.21 ; vector B has components Bx= 4.06 , B-y = -3.66. Find the counterclockwise angle the vector difference B-A makes with the +x axis.
What is the amplitude of oscillation? What is the ball's maximum acceleration?What is the ball's position when the acceleration is maximum?What is the speed of the ball when x1 = 3.1cm.