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It is compressed slowly to 10 litres in a polytropic process with n=2 then compressed further to 5 litres in a second polytropic process in which n=1.5. Find the total work done on the carbon dioxid
Describe the microstructure of a heavily cold-worked metal of an Al=0.8% Mg alloy as observed with an optical microscope at 100x.
Calculate the water temperature (K) at the exit, (a) if there is no heat loss from the heat exchanger to the surroundings, and (b) if heat is lost to the surroundings at a rate of 6 kW.
The rate of heat loss from the turbine casing to the surroundings is 8.5 kW. Calculate (a) the mass flow rate (kg/s) of the steam, and (b) the power output (MW) of the turbine
If heat transfer from the heat exchanger to its surroundings in 10% of the energy required to increase the temperature of the oil, determine the steam mass flow rate, in kg/s.
The initial temperature of the plate and the cooling air temperature are 295 K when 300 W of power are switched on. Find the plate temperature after 10 minutes. Find the steady temperature of the co
Find the inlet area (m2). Find the velocity (m/s) and area (m2) at a point where p2 = 20 bar, T2 = 180oC, and Find the velocity (m/s) and area (m2) at a point where p3 = 5 bar, T3 = 50oC.
Sketch the process on a p-V diagram. Calculate the sign and magnitude of work done and the heat transferred in this process.
What cost-of-capital rate makes the royalty and lump sum payment alternatives equally acceptable? What alternative is preferred if the company's cost of capital is in fact lower than this break-even r
The final equilibrium temperature of copper and water is 72.8F and the pressure in unchanged. What is the volume of water in the tank?
Determine the required mass of the counterweight C so that the resultant moment produced by the load and the weight of the tower cran jibs about point A is zero.
If the cost of capital (annual cost of borrowing money by the company) is 10 percent, how many years of service will be for the company to recover its investment?
Ball 1, with a mass of 150g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 320g and is initially at rest. What are the final velocities of each ball if the collision is
It is compressed slowly to 10 liters in a polytropic process with n=2 then compressed furthur to 5 liters in a second polytropic process in which n=1.5. Find the total work done by carbon dioxide.
Air in an elastic balloon of initial diameter .2 m and internal pressure of 400 kPa expands to twice its initial diameter. How much work is done by air in the process?
A short mild steel column with fixed ends has a cross section of 100mm by 50mm. Assuming a safety factor of 6 calculate the load that it can safetly support.
Calculate the diameter of a medium carbon steel pin in double shear subjected to a suddenly applied shearing force of 150000N.
A cylinder fitted with a smoothly sliding piston contains 200 liters of argon gas at 140 kPa and 10degC. Calculate the sign and magnitude of the work done and heat transferred in this process.
How many months are required to repay the debt? If your answer includes a fraction of a month, roundup to the next month.
Determine (a) the acceleration of each block , (b) the tension in the cable. Block A weighs 200 lb, block B weighs 350 lb, and block a is on a 30 degree incline.
Determine (a) the distance traveledby the train before it comes to a stop (b) the coupling force between the cars as the is slowing down.
A vertical cylinder fitted with a frictionless piston contains 5 kg of Refrigerant-22 at 10°C. Calculate the heat transfer for the overall process
A vertical cylinder with a frictionless piston contains argon gas at 100°C.If the cylinder volume is 2 L, assuming the ideal gas law applies, what is the mass of argon inside?
Eventually, the temperature of the water and steel part become the same. What is the change in the internal energy of the part?