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Pneumatic nail gun uses .02 ft3 of air, at least 100 psia, and 1 btu of energy per nail, tank used must supply enough air to fire 500 nails.
Pneumatic nail driver uses .02 ft3 of air at 100 psia and 1 btu of energy per nail, must drive 500 nails with a tank no larger than 500 psia, temperature at 85 def F. What is tanks maximum pressure
The two tanks are allowed to reach equilibrium, and the final pressure is measured to be 400 psia and temperature is 60oF. What is the volume of the second tank?
Find (a) the approximate location of the laminar turbulent transition; (b) the overall h- for a 2 m chord; (c) h at the trailing edge for a 2 m chord; (d) delta and h at the beginning of the transit
The system is extremely clean and quiet, and the flow stays laminar until a noisy air compressor is turned on in the laboratory. Then it suddenly goes turbulent. Calculate the ratio of the turbulent
For the forgoing conditions and a fin unit width, calculate the fin heat rate, efficiency, and effectiveness. Compare the foregoing results with those for a fin fabricated from pure copper (k= 400w/m*
A stainless steel tube (k= 14 w/m*k) used to transport a chilled pharmaceutical, has an inner diameter of 36 mm. What is the heat transfer rate per unit of tube length?
For these conditions, what is the force (in units of lbf and N) transmitted to the structure holding the diffuser? Provide both direction and magnitude of the force, and use a picture to help presen
If this bullet was fired into 1 lbm of water at room temperature and all of the kinetic energy was converted into increasing the temperature of the water, find the water temperature increase in degr
Assume constant specific heat ideal gas properties evaluated at 400 K. Find T2 in degrees K and heat transfer Q and the work W for this process in kJ.
Steam at T1=600 degrees C, P1=15 MPa enters a reversible and adiabatic turbine at a flow rate of 300 kg/s. The steam exits at a temperature of T2=20 degrees.
If the work output of the engine 1 is twice more than that of engine 2, determine a. the intermediate temperature b. the heat rejected to the cold sink c. the efficiency of each heat engine.
A heat-engine of 32% thermal efficiency is used to drive a refrigerator having coefficient of performance of 5. Determine the heat input into the engine for each MJ removed from the refrigerated spa
Cruising at 20.1 m/s (45 mph), the gage reads 14 inches of Hg (Mercury) vacuum. If the local atmospheric pressure is 99.5 kPa, what is the absolute intake manifold pressure in kPa. Show all your ste
A steel shaft 120 mm in diameter is supported in flexible bearings at its ends. Two pulleys, each 500 mm in diameter, are keyed to the shaft.
Does can the forklifts lift it up? Explain your answer with the positioning of the forklift. Can it both lift up in the middle of the shaft or does it both need to be spread evenly?
Then in another 4s it moves from Sb to Sc +2.5 m. Determine the particle's average velocity amd average speed during the 6-s time interval.
Find a unique four-bar mechanism; one that was not mentioned in class like the (vise grips). Sketch the mechanism and provide a short description about the function and purpose of your four-bar mech
The convection coefficient is 5.5 W/m^2 *k and radiation coefficient is 10 W/m^2 * k. Determine the heat rate per unit length from the pipe (W/M) and the insulation outer surface temperature (K).
2 Balloons filled with helium, made of latex, same unfilled thickness (2mm) & 3cm diameter released at sea-level. What h will the balloons explode?
The time t=30s the velocity = 26m/s and displacement at time t = Dt metres. Derive expressions for both velocity and displacement as a function of time t.
What is the maxium distance for which the device will work if the water is in a cavern with a pressure of 0.05 bar rather than being exposed to the atmoshpere?
What is the maxium distance between the top of the well and the water for which the device will work if the atmospheric pressure is 1 bar?
Find the net amount of new disorder created and the irreversibility of the process. What might account for the calculated irreversibility and how could it be reduced?
The inlet temperature is 1000 K and the exhaust pressure is 100 kPa. Find the required inlet pressure and the exhaust temperature. Assume air is an ideal constant-Cv0 gas.