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Prove that the process is irreversible. In modeling this rocess treat the egg as the system and assume the passage of sufficient time for the egg to return to its inintial temperature.
What is the rpm of the fan three seconds after it is turned on? How many revolutions has it made at this time? What is the tip velocity of the blades at this time is the overall diameter is 12 inche
An automobile can accelerate at the rate of 1.5m/s2 and can decelerate at 7m/s2. if driver never exceeds the speed limit of 88km/hr what is the minimum time for him to start from rest and stop his
Determine the minimum amount of heat that must be extracted from the tank of water by any device to accomplish the required cooling of the house. No other sources of energy are available.
Discuss the effect of pressure ratio on the following parameters a) Thermal efficiency versus pressure ratio b) Back work ratio versus pressure ratio.
The second turbine exhausts at 480kPa to the regenerator. All the expansion and compression processes are isentropic and using constant specific heats at room temperature, determine the compressor
Determine the coefficients a, b, and c by applying the boundary conditions to the prescribed temperature distribution. Use the results to calculate and plot the temperature distribution.
Write an expression for the conduction heat rate, qx(x). Use this expression to determine the temperature distribution T(x) and qualitatively sketch the distribution for T(0) > T(L).
A mass of 6 kg moving horizontally with velocity v impacts the top of the post. Determine the largest speed for which the maximum normal stress in the pipe does not exceed 180 MPa.
A dragster comes off the start line with an acceleration of 4 m/s2. The acceleration increases uniformly from 4 m/s2 to 10m/s2 over 3 seconds, then remains constant to the finish line (500m). Find: t
What is the velocity of the canoe when it hits the bottom? Give one reason why this may easiest be handled by an energy approach. Use energy methods to determine this velocity.
The aircraft drops the supplies from a point 100 m above the peak of the mountain, while traveling horizontally with a velocity of 300 km/hr. How far down the mountain will the supplies strike and h
Determine the convection coefficient between the wall and water. Also show that the steady state temperature distribution has form T(x) = ax^2 + bx + c.
If the inside surface of the furnace front is subjected to uniform heat flux of 5kW/m^2 and the outer surface has an emissivity of .30, determine the inside surface temperature of the furnace front.
Determine (a) the time at which the velocity will be zero, (b) the position and distance traveled by the particle at that time, (c) the acceleration of the particle at that time, (d) the distance tr
Write the governing equation for the temperature distribution, T(x). what is the name of this equation? solve the equation for the general solution in terms of (qx''/k).
The cannon recoils and strikes a plate attached to a spring. Find the maximum spring deflection if the plane is smooth and the spring constant is 500 ft/sec.
Determine the amount of the air (kg) that must be bled off to restore the pressure to its original value at this temperature assuming that the volume does not change.
A temperature of 27°C. 3 litres of gas at the same temperature and pressure are forced into the vessel. The temperature is then raised to 127°C. Calculate the new pressure of the gas.
A beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. Calculate the dead load that can be safely supported when applied to the middle of the beam.
Find the global minimum via the Golden Section search. Start with a range [5, 10] and iterate until the range is less than 0.5.
Use Excel to solve for the amount of each part that maximizes profit. Which would further maximize profit, hiring an extra 40 hours of fabrication time or finishing time?
Design a V-belt drive for this application, including sheave sizes, center distance etc. The motor size limits that the center distance be at least 22 inches.
Design a chain drive for a steam turbine driving a centrifugal pump. The input speed is 2200 rpm and output is around 775 rpm.
A fundamental law of motion states that the acceleration of an object is directly proportional to the resultant force exerted on the object and inversely proportional to its mass.