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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?
The deceleration should be limited to 60 g by the crushing of the front end of the car. Find the crushing force applied by the wall to the front end of the car.
What is the thermal resistance of the SiC plate, the insulation and the convective boundary layer. Determine the temperature at the outer edge of the insulation.
Find the reactive torques at the supports, T_A and T_B. Use numerical values as follows: d_A = 2.5 in., L = 48 in., G = 3.9*10^6 psi, T_0 = 40000 in.-lb.
Heat is lost to the surrounding air during this process in the amount of 15 kJ. Determine (a) the final mixture temperature and (b) the final mixture pressure.
The final equilibrium temperature of the copper and water is 72.8F and the pressure is unchanged. What is the water volume in the tank?
Calculate the center-to-center separation distance along the <100> direction under a tensile stress of 1,000 MPa along this direction.
The pressure outside the bubble is equal to the vapor pressure (saturation pressure) of the water. Calculate the bubble diameter in microns, where one micron is 10-6 meters.
During the process no change in temperature of the water bath was recorded. Show that Joule's experiment is a verification of the conservation of energy.
Derive expressions for the work and heat transfer per unit mass of gas for each process in terms of the temperatures and pressures at each state and the thermodynamic properties cp, cv, and R.
At the moment when the valves are closed on the radiator of a steam-heating system. Calculate the heat transfer from the steam.
You were asked to design a measurement system to study the vibrational spectrum of a diesel engine. What is the minimum sample rate that reproduces the frequencies of the vibrational spectrum correctl
Determine the magnitude and direction of the heat transfer for process 1-4-3 if 15 Btu of work is done by the system during this process.