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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?
The velocity is 20 ft/sec. After the 200' pipe run, this 6" pipe has a sudden enlargement to an 8" (nominal pipe size) schedual 40 steel pipe and continue for another 200 ft with a submerged dischar
How many Bq (becquerels) of 90Sr are present? (b) How many Bq of 90Y are present? (c) What is the mass of 90Y present? (d)What will the activity of 90Y be after 100 years?
A piston cylinder contains air at 350 kPa and 20 C. It is then heated at constant pressure until its volume increases by a factor of three. Determine the heat added and the work done.
The coefficient of friction between the block and ramp is u=0.3. If the booster cuts out at d=5m up the incline, what is the total distance that the block travels before coming to a stop?
The measurement is to be performed with an uncertainty of 25 mm. Specify values of the orifice diameter, upstream pressure, and allowable uncertainty in the pressure measurement to accomplish this o
An inventor claims to have developed a refrigerator that requires a net power input of 0.7 HP to remove 12000 Btu/h of energy by heat transfer from the freezer compartment at 0oF and discharges ener
What is the heat loss rate for the properly-vented house with the heat exchanger installed? What is the heat loss rate if an el-cheapo vent fan were installed in the wall to deliver the exchange rat
Helium gas enters a nozzle at 5 m/s. the nozzle is not properly insulated and is releasing 2 kJ/kg of heat to the surroundings. From the nozzle inlet to exit, the decrease in temperature is 10 C. D
After exiting the turbine, the water is then reheated at 4 Mpa to 600 C, where 5000 kW of heat is transferred to the water flowing through the reheater.
A leak develops in the pipe allowing fluid to escape to the building which is at atmospheric pressure. Treating the leak as a throttling process, find the state of the escaping fluid. Show ALL work.
Determine a) the final temperature of the water vapor in the tank. b) the heat transfer through the tank wall in kj for this process. A mass of 4.0 kg of R-134a at p1=140 kpa and T1= 20 cis containe
However, over time the effects of scoring diminish and the boiling eventually exhibits behavior similar to that associated with a polished surface. Determine the tube surface temperature immediately
A valve is opened allowing air to flow into the tank until the pressure reaches 90 psi. How much mass flowed into the tank and what is its final temperature? Assume the process is adiabatic.
R-22 enters an insulated diffuser as saturated vapor at 4C with a velocity of 300m/s. The refrigerant exits the diffuser with a velocity of 15m/s and at p=10bar. Determine the final temperature and