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The density of air is to be determined by measuring its pressure. Determine the nominal value of the density in Kg/m^3 and its uncertainty using an appropriate method.
Which is supported on the opposite side. Is the engine mount properly designed for horizontal mounting? Explain briefly why.
Determine the minimum number of expansion joints required and the length that each bridge section should be fabricated.
Which is that hardness is measured as the applied load divided by the area of the impression made by as indentor. is he correct? If not, how is the Rockwell test different?
Driving a 2000-ft loaded horizontal conveyor at 4 ft/s requires 35hp. What horsepower would be required if the conveyor is now raised at on end, giving a gradient of 1 ft of rise in 60 ft of horizo
Wwhat is the anticipated load at which the speciment is likely to fail, given that its width = 15 mm, thickness = 7.5 mm, and length = 50 mm?
The flow curve for austenitic stainless steel has the following parameters: strength coefficient = 1200 MPa, and strain-hardening exponent = 0.40. Determine the force required to achieve this compre
A piping system consists of 100 ft of 2-in pipe, a sudden expansion to 3-in pipe, and then 50 ft of 3-in pipe. Water is flowing at 100 gal/min through the system. What is the pressure difference fro
A copper wire of diameter 0.80 mm fails at an engineering stress = 248.2 MPa. Its ductility is measured as 75% reduction of area. Determine the true stress and true strain at failure.
Determine the yield strength, modulus of elasticity, tensile strength, and percent elongation. Also determine the strength coefficient and the strain-hardening exponent in the flow curve equation.
Liquid octane (C8H18) at 25ºC, 1.0 atm enters a well-insulated reactor and reacts with air entering at the same temperature and pressure.
Find the work done per pound of water during the expansion. Find the heat transfer per pound of water during the expansion. Find the value of the internal energy of the water afte
Water exiting the condenser of a power plant at 38ºC enters a cooling tower with a mass flow rate of 4.5 x 107 kg/h. A stream of cooled water is returned to the condenser from a cooling tower w
The bar is loaded axially until it elongates 6.5mm, and then the load is removed. How does the final length of the bar compare with its original length?
Explain more about brittleness, and is it better to use aluminum? how does aluminum behave under a pressurized tank, the point is to avoid catastrpic failure.
If the winch exerts a force of T=125s on the cable, where 13m is the displacement of the car in meters, determine the speed of the car when s , starting from rest. Neglect rolling resistance of the
An orifice meter is installed in a 12 foot ductile iron pipe carrying water at 60 deg F. A mercury manometer is used to measure the pressure difference across the orifice when the expected range of
Determine the throat pressure (kPa) and temperature (K), the shock location in terms of A/A*, and the Mach numbers immediately upstream and immeadiately downstream of the shock.
An air-conditioner with refrigerant -134a as the working fluid is used to keep a room at 26 Celsius by rejecting the waste heat to the outdoor air at 34 Celsius.
Determine the density of air at Mile High Stadium in Denver, Colorado, on a warm summer evening when the temperature is 78 F. The barometric pressure is 85.1 kPa.
A projectile is launched horizontally with an initial velocity of 25.8 m/s and lands on a slope that inclined at 28 degrees. How far down does the projectile land on the slope?
Sketch the two processes in series on a T-v diagram. Determine the overall change in internal energy, (Btu), of the water.
Methane escapes through a small (10^(-7) m^2) hole in a 10-m^3 tank. The methane escapes so slowly that the temperature in the tank remains constant at 23?C.
The rod assembly is used to support the 250lb cylinder. Determine the components of reaction at the ball and socket joint A, the smooth journal bearings E, and the force developed along rod CD. The
Determine the heat transfer coefficient from the gas to the tube surface. What is the percentage error in this experimental value for an estimated ±5% error in the inner surface heat transfer