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Assume 200 MeV is released per fission, the 235U fission cross section is 470 b, and the atomic weight of the uranium fuel is 238 g/mol. What is the core average fission rate of the reactor in fission
The 235U fission cross section is 470 b, and the atomic weight of the uranium fuel is 238 g/mol. What is the number density (atoms/m3) of 235U in the reactor?
What must the RHR coolant flow rate be in gpm (gallons per minute) to ensure the removal of 3.0×109 J of decay heat in 10 minutes.
If the tire is filled with air and the final pressure after heating to 100F is actually 32 psi, calculate the change in entropy per unit mass.
One pound mass of air is contained in a piston-cylinder assembly that executes a Carnot power cycle. Determine the heat transfer to the air during the isothermal expansion (BTU).
Allowing a 5oC temperature difference between the external reservoirs and the air when appropriate, calculate the specific heat added to the cycle and its net specific work.
Estimate the surface area of the pond for this level of continuous power production. Assume that the solar energy is incident on the pond at a rate of 500 W per m2 of pond area at noontime.
Determine the impulse provided by the floor to the laptop and the average acceleration to which the laptop is subjected when in contact with the floor.
A spherical balloon initially at 150 mm in diameter and containing R-22 at 150 kPa is connected to a 30 L insulated rigid tank containing R-22 at 500 kPa.
At what wind tunnel speed should the wind tunnel be run in order to acheive dynamic similarity? Estimate the aerodynamic drag of the model parachute in the wind tunnel?
Determine the heat transfer to the air during the isothermal expansion (BTU). Determine the heat transfer from the air during the isothermal compression, Q41 (BTU).
The mean velocity of the steam through the duct is 40 m/s. Determine the flow work required to push the steam into the duct.
If the angle of slip direction is 330 and the normal to the slip plane is 720, will the crystal yield if the applied axial force is 9200 psi? What is the yield stress of the crystal?
50.0 mL of a 0.50 M solution of potassium cyanide is mixed with 10.0 mL of a 2.0 M solution of hydrochloric acid. How many grams of lethal hydrogen cyanide gas are produced?
A cylinder equipped with a set of stops for the piston is initially filled with 5 kg saturated liquid-vapor mixture of water at 125 kPa. Determine the initial and final temperature.
What is the velocity of flow into the filter? If the density of the pipe line gas is .0064 gms/cm^3 what is the density of the gas at the filter input?
What is the yield strength for the same steel having an average grain diameter 0.004mm? Assume Hall-Petch equation is valid.
The input pressure is 20 atmospheres and the output pressure is 10 atmospheres. If the input volume flow rate is 100 cm^3/sec what is the output flow rate?
A gas flows steadily into a cylindrical core of porous media and out the other side. If the output flow rate is twice the input flow rate what has happened to the density of the gas in transit?
Air enters at 75 psi, 400 F, and 100 ft/s and area at inlet is 20 in^2. At outlet 15 psi, 500 ft/s. Find m dot, and Temperature and area at outlet. Q dot=0 First law of thermodynamics problem.
Chris, being an avid skier, takes a trip to an Alpine resort to ski. Determine his velocity and acceleration at this instant in en, et system.
Determine the magnitude of the components of force which the track exerts on the car in r, theta, andz direction when the time instant t=2s. Neglect the size of the car.
Find mass flow rate through the boiler, power produced by the turbine, the rate of heat supply in the boiler, thermal efficiency, and error caused in the thermal efficiency.
Sketch the process on P-v and T-s coordinates. Determine the heat transfer and work, each in kJ per kg of air. Treat air as an ideal gas.
The box was pushed downward such that the displacement of the springs were x1=3 in. and x2= 8 in. and then released. Find the maximum height, h, that the box will reach.