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An ideal otto cycle heat engine with compression ratio 15.1 Assume perfects gases with constant specifics heat. heat add by combustion Q.900kj. Determine the Work of the cycle.
A person with a receiver is 5 km away from the transmitter. What is the distance that this person must move further to detect a 3dB decrease in signal strength.
Calculate the highest velocity,Acceleration and jerk that part would experience under that motion sheme. Sketch a displacement curve ,and label the points.
Two kg of a mixture having an analyis of on a mass basis of 30% nitrogen, 40% carbon dioxide, 30% oxygen is compressed ariabatically from 1bar, 300K to 4bar, 500K determine the work in kJ.
What nominal annual rate of return would you recieve if you purchased the bond now and held it to maturity 20 years from now?
Which is perfectly flexible ,infinitely strong and weightless .When the mass rotating around a fixed center at a constant omega of 200 RPM. a) What is th tension in the string.
A valve in the line connecting the two tanks is opened and the contents are allowed to mix until equilibrium in attained at a temperature of 1080R. Assuming the ideal gas model, determine the initia
Argon enters an insulated nozzle at 3.0 bars, 1200K, 10 m/s and exits at 1 bar, 800K. For steady state operation, determine (a) the exit velocity, in m/s (b) the isentropic nozzle efficiency.
Determine the steady-state solution for the following differential equations. If resonance exists for the equations, determine the resonance frequency, damping factor.
On a hot day, a sweaty athlete stands in a breeze of air at 100oF, 70% relative humidity. To what temperature is the surface of his skin cooled?
A frictionless piston cylinder device with a set of stops contains .5m^3 of saturated H2O vapor at 200 kPa. Calculate the sign and magnitude of work done and heat transfer in this process.
Determine the rate of air flow for the 80 F stream (in lb/hr) if a 7 hp fan is added to homogenize the air mixture within the cooling tower.
A frictionless piston cylinder device contains 5kg of air at 200kPa and 25 degree C. Find the work done and heat transfered during this process.
What is the temperature at the initial state (state 1)? What is the temperature at the final state (state 2)? How much heat is required to achieve the process?
What is the density of air leaving the compressor? What is the volumetric flow rate of air leaving the compressor? What is the power required to operate this compressor?
Determine the largest load which can be applied, knowing that the normal stress must not exceed 18 ksi and that the decrease in length of the block should be at most 0.12 percent of its original len
A heated vertical wall 1.0 ft high of an oven for baking food with the surface at 450 F is in contact with air at 100 F. Calculate the heat transfer coefficient and the heat transfer er ft of width
Determine the acceleration a of the car just after passing point A if the driver does not change the throttle setting or shift into a different gear.
An equimolar mixture of N2 and O2 is heated to 2100 k at 1 atm which generates NO. Calculate the molar values of the equilibrium composition of N2, O2, NO.
Then reposition the links as the 12-in is rotated 110 degree clockwise from the orientation Analytical, Determine the resultant angular displcement of the wheel assembly.
The drive roller for a conveyor belt. a) link A-B is rotating at 80 RPM counterclockwise .b)link A-B is 60mm long,link B-C 40mm long,and dimension A-D is 360 mm. Find the angular velocity of link C-
Water at 300K flows at 0.2 m/s over a 3 cm-diameter cylinder maintained at 400K. Determine (1) Drag coeffiencient and (2) the heat loss from the cylinder per unit length.
Why use the Penalty Method for implementing boundary conditions? What are the advantages/disadvantages of direct versus iterative solutions?
When is it necessary to use GNL over linear? What is the difference in formulation between GNL and linear? What is stress stiffening and how does it affect an analysis (how is it used)?
If the combustion is complete and the exit temperature of the combustion gases is 1200 K, determine (a) the mass flow rate of air and (b) the rate of heat transfer from the combustion chamber.