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A patio is in the shape of a circular sector with a central angle of 160.0 degrees. It is enclosed by a railing of which the circular part is 11.6 meters long. What is the area of the patio?
A jet is traveling westward with the sun directly overhead (the jet is on a line between the sun and the center of the Earth). How fast must the jet fly in order to keep the sun directly overhead?
A plate of mass M is suspended between two opposing jets, each of area A, velocity Vo and density d. The plate is suddenly given a velocity Vo parallel to one of the jets.
The arm of a car windshield wiper is 12.75 inches long and is attached at the middle of 15.00 inch blade (assume that the arm and blade are in line.) What area of the windshield is cleaned by the w
What is the maximum possible temperature of the high temperature reservoir to still satisfy the second law of thermodynamics?
A robot is on the surface of Mars. The angle of the depression from a camera in the robot to a rock on the surface of Mars is 13.33 degrees. The camera is 196.0 cm above the surface. How far from t
This part is to withstand a fluctuating tensile load varying from 0 to 20 ksi. The surface is mirror polished. Find the factor of safety guarding against first-cycle yield.
5 Kg of water at 1 atm in a cylinder was heated until it is half boiled. What is the atm inside the cylinder? The tampreture of liquid water ?
10 mol of an ideal gas at 5 atm at 298 K is stored in an insulated piston and cylinder arrangement. How much work does the ideal gas go against the restrain?
A cold heading operation is performed to produce the head on a steel nail. The strength coefficient for this steel is 600MPa, and the strain hardening exponent is 0.22 . Coeff. of friction at die wo
How much electricity does the pump consume? The pump is 70 % efficient, and the motor that drives it is 95 % efficient. Draw the diagram?
A pound of air is used in a Carnot power cycle. At a constant 1540oF the pressure goes from 2710 psia to 1882 psia. Determine The heat transfer during the constant temp expansion.
The brakes of a 1350 kg car are released, and the car is held in place on the plane surface by the cable AB. The car's front wheels are aligned so that the tires exert not friction forces parallel t
Airplane takeoff from an aircraft carrier is assisted by a steam driven piston/cylinder device with an average pressure of 1250 kPa. A 17500 kg airplane should be accelerated from zero to a speed of
A tank contains fuel oil of relative density 0.75 and exerts a pressure of 12 kN/m2 onto the base of the tank. Calculate the depth of fuel that the tank presently holds.
What happens to the disk if the platform is undergoing uniform circular motion, so that the speed at A is constant and equal to 2 m/s
One-half pound of water executes a Carnot power cycle. During the isothermal expansion, the water is heated at 600 degrees Fahrenheit from saturated liquid to saturated vapor.
Find the specific volume (ft3/lbm) and specific entropy (Btu/lbm-R) when P = 90 psia and h = 125.695 Btu/lbm. Find the pressure (psia) and specific volume (ft3/lbm) when T = 60?F and s = 0.10305 Btu/l
Compare the effectiveness of quenching in moderately agitated water and oil by graphing, on a single plot, radial hardness profiles for 65-mm- (2.5in) diameter cylindrical specimens of an 8630 stee
Saturated liquid water at 0.1 bar (State 3) exits the condenser. Water is pumped to 25 bar and 50?C (State 4) in an adiabatic pump.
For a glass slide (E=70 GPa) that is 7.5 cm long, 2 cm wide, and 1 mm thick, what force is necessary to cause a deflection of 0.125 mm at the center of the slide. What stress results from this force
Air is compressed by a 30-kW compressor from P1 to P2. The air temperature is maintained constant at 25-degrees Celsius during this process as a result of heat transfer to the surrounding medium at
Determine the actual COP of this "thermally-activated refrigeration package" cycle = useful energy effect/expensive energy input.
Suppose 2.00 m^3 of air, which is considered an ideal gas, is initially at a pressure of 101.3 kPa and a temperature of 20.0 C. The air is compressed at a constant temperature in a closed system to
Five kg of water is contained in a piston-cylinder assembly, initially at 5 bar and 240°C. The water is slowly heated at constant pressure to a final state. If the heat transfer for the process