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Determine the uncertainty of the velocity measured when the uncertainty of the manometer reading is +/- 2mm. R = 0.287 kPa*m^3 / kg*K water density = 1000 kg/m3
This 6" pipe has a sudden enlargement to an 8" (nominal pipe size) schedule 40 steel pipe and continues for another 200 ft with a submerged discharge. If the water is at 60 deg.F, what is the total
The volume of the mold cavity forming the outside surface of the casting = 5000 cm3. What is the weight of the final casting?
A piston-cylinder device contains 2.5 kg of air at 150 kpa and 2 m^3. the air is now compressed according to the relationship PV^2 = constant until it reaches 1 m^3. Determine the boundary work.
Assuming that the coefficient of kinetic friction the tires and road is 0.9and the coefficient of restitution of the impact is0.5, calculate the velocity of A just before impact.
Determine 1) the pressure and volume at the initial state. 2) the pressure and volume at the final state and 3) the total work.
Cutting conditions are: v = 2.5 m/s, f = 0.3 mm/rev, and d = 2.0 mm. Determine: (a) cutting time, and (b) metal removal rate.
Find the optimal compression ration in terms of the upper and lower temperature limits of operation. the optimal compression ratio should yield maximum specific works.
Calculate the entropy change in Btu/lbmR B. Calculate the heat transfer in Btu/lbm C. Sketch this process in a T-S diagram D. Is this process possible?
Combustion occurs with 20% excess air. Assume all fuel nitrogen is converted to NO2, and that no thermal NO2 forms. Calculate the NO2 concentration (ppm) in the exhaust gas.
Assume 35% of fuel nitrogen converts to NO, and that fuel NO is 80% of total NO (the remainder being thermal NO). Calculate a) the NO concentration (ppm) in the exhaust gas and b) the daily producti
Determine the NO2 emissions rate (lb/hr) from a steam plant that uses sugar mill waste (3300 BTU/lb) to generate 1000 lb steam/ hr.
Is the heat transfer one, two, or three dimensional? Is there heat generation in the medium? Is the thermal conductivity of the medium constant or variable?
To avoid warping, the temperature difference across the wafer thickness cannot exceed 20C. if the upper surface of the silicon wafer is at a uniform temperature of 600 K; determine the maximum allow
Obtain a relation for the variation of temperature in the pipe by solving the differential equation and (c) evaluate the rate of heat loss from the steam through the pipe.
Evaluate and compare the lower heating values per unit mass of stoichiometric mixture and per unit volume of stoichiometric mixture at STP for methane.
Calculate the magnitude of the principle stresses, the maximum shear stress and the plane on which they act on the shaft.
In the interest of minimizing heat transfer from the plate, which orientation, (A) or (B), is preferred? What is the convection heat transfer from the front surface of the plate when it is in the pr
Water flows through a shower head steadily at a rate of 10L/min. An electric resistance heater placed in the water pipe heats the water from 16 to 43C.
Find the temperature and specific internal energy for the final state 2. Calculate the work and the heat transfer. Indicate the process in the following diagrams with labeled temperature (T1, T2), vo
What would be the velocity of the sound in the tube? for fork 1 = 1024 hz what would the wave length be? where would the first resonance be located?
A 0.2 lb block is initially moving horizontally at 5 ft/s when R1 = 4 ft It slides around the smooth inside surface of the cone while descending.
What is the value of the capacitance C2 that should be added to the circuit so that the circuit will have a resonant frequency that matches the generator frequency? Note that you must decide whether
This nonresonant frequency is such that the ratio of the inductive reactance to the capacitive reactance of the circuit is observed to be 5.52. The resonant frequency is 300 Hz. What is the frequenc
When the same capacitor is connected to a second ac generator that has a frequency of 4.7 kHz, the current in the capacitor is 89 mA. What voltage does the second generator produce?