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In a traction drive, a 1.0-in.-diameter cylindrical roller is preloaded against a 3.0- in.-diameter cylindrical roller. The steel rollers are 1.0 in. wide and the preload force is 50 lb. The axes of the cylinders are parallel. Calculate the maximum contact pressure and the width of contact. Also determine the maximum value of the subsurface shear stress.
a the dynamic error in a temperature measurement using a thermocouple is 70 at 3 s after an input step change in
A 50-mm-diameter nozzle meter is installed at the end of a 80-mm-diameter pipe through which air flows. A manometer attached to the static pressure tap just upstream from the nozzle indicates a pressure of 7.3 mm of water. Determine the flowrate.
A four-cylinder, four-stroke spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a total displacement volume of 1.8 liter.
find a closed body using 3 sourcessinks the sign of the strength will determine which is which located at -0.7m 0 0 0
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
A small hydroelectric power plant produces electrical power at a rate of 30 kW. The plant utilizes a stream of water that drops 40 m from a lake to the turbine and flows at a rate of 100 kg/s. What is the efficiency of the turbine-generator?
At the required frequency, the section is 0.3λ and two stubs are made of the same line. Calculate the lengths of the stubs, if the antenna is connected at A-A.
a system receives 10 kj of energy to do something. the system is adiabatic and its super efficient. how much work
A 12-ft^3 rigid tank contains refrigerant-134a at 40 psia and 55 percent quality. Heat is transferred now to the refrigerant from a source at 120 °F until the pressure rises to 60 psia. Assuming the surroundings to be at 75 °F, determine the a) amoun..
In the first liquid, which is water, it floats fully submerged. In liquids A, B, and C, it floats with heights h/2, 2h/3, and h/4 above the liquid surface, respectively. What are the relative densities (the densities relative to that of water) of?
Given a BCC single crystal- Apply a normal stress, s, perpendicular to the 110 plane. What is the shear stress on a likely slip system
calculate the bulk density of a rock which has 20 porosity. the bulk mineralogy of the rock is 80 quartz 15 calcite and
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