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A boring bar 1 inch in diameter extends 2 inches from the tool post. When the bar is subjected to a machining force (applied at the end of the bar and perpendicular to the axis of the bar) it is obs
A vessel contains 4 kg of wet steam (liquid-vapor mixture) at 140 degC. After the addition of heat, the steam has a pressure of 0.6 MPa and a temperature of 700 deg.
An insulated piston-cylinder device contains 0.05m3 of saturated refrigerant-134A vapor at 0.8mPa pressure. The refrigerant is now allowed to expand in a reversable manner until the pressure drops t
Plot the magnitude of the velocity of the parasailer as a function of q, determine the total acceleration of the parasailer at t= 5 sec.
A design specification requires that a 1008 pound vehicle be able to climb a 38 degree incline at 43 mph. What is the minimum horsepower required of its engine?
The Department of Energy projects that between the yeras 1995 and 2010, the United States will need to build new power plants to generate an additional 150,000 MW of electricity to meet the increasi
Boltzmann's constant is equal to 11.7 x 10^-8 cal/(cm2dk4). Write a vba statement to assign the value of boltzmann's constant in scientific notation to a variable sigma.
An airplane has a rectangular-platform wing that has an elleiptical spanwise lift distribution. the airplane has a mass of 1200 kg, a wing area of 20 m^2, and a wingspan of 14 m, and it is flying at
If the pressure distribution over the surface of the body is constant (e.g. atmospheric pressure everywhere), use Gauss' theorem to prove that the resultant surface force (force due to pressure) on
A flat plate separates two supersonic air flows. The flow along the upper surface has a Mach number of 1.4 and a stagnation pressure of 55.3 psia. The flow along the lower surface has a Mach number
As the argon passes through the pipe, it is heated in a steady flow process to 100 degrees C. The pressure at that point is 28 kPa. No work is being done. Calculate the rate of heat transfer (Q).
A two-dimensional, diamond shaped supersonic airfoil has a total inclued angle of 15 degrees at its leading edge and its trailing edge. The maximum thickness of the airfoil is 0.5 ft.
A converging-diverging nozzle has a design Mach number of 2.0 . The stagnation pressure at the nozzle inlet is 100 psia. The nozzle exhausts to a back pressure of 5 psia.
Calculate the flow field (Mach number and flow direction) about a thin flat plate airfoil at an angle of attack of 10 degrees in air at a Mach number of 2.5 . Determine the lift and drag coefficien
The temperature surrounding the DMM is 30 degrees C. The thermocouple voltage is 37.0 mV. What is the exact temperature of the oven?
Why does a homogeneous isotropic material such as cast iron fail in torsion at 45 degrees, while long bone is expected to fail at 30 degrees.
Determine the exit velocity, in ft/s, and the exit temperature, in degrees F, if the ratio of inlet to exit pipe diameters, d1/d2, is 0.64.
A system of equivalent mass, 30kg has a natural frequency of 120rad/sec and damping ratio of 0.12. The system is subject to harmonic forcing with an amplitude of 2000N and frequency of 150rad/sec.
Using the ideal gas model for air, and assuming isothermal conditions in the tank, derive an expression for the pressure in the tank as a function of time.
A steel ring of 250mm diameter has a width of 50mm and a radial thickness of 5mm. It is split to leave a narrow gap of 5mm wide normal to the plane of the ring. Assume the radial thickness to be sma
The pressures of the nitrogen are low enough to treat it as an ideal gas. Determine the velocities of the nitrogen upstream and downstream from the valve.
A vertical jet of water leaves a nozzle at a velocity of 10 m/s and a diameter of 20 mm. It suspends a plate having a mass of 1.5 kg. What is the vertical distance h?
An ideal Diesel cycle with air as the working fluid has a compression ratio of 20 and a cutoff ratio of 1.3. Determine the thermal efficiency of the cycle
The critical heat flux of water at 1 atm is q''max =1258.7 kW/m which occurs at ?T = 30C. Boiling enters the transition boiling regime when the excess temperature is increased further. Estimate the
Find the stress and the strain in all three dimensions when compressed. Then, find the force on the die, according to the maximum shear stress criterion and according to the distortion energy crite