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A convenient and secure attachment point for fall protection lines is located 35 feet above ground level on the exterior wall of a building. A 20-foot safety line is available for connection to this attachment point. What is the lowest and highest level at which a work platform can be safely positioned for workers to be protected by the safety line (assume it is attached to the worker's safety harness D-ring). Show work and give a web site
four forces are applied to a W200x35.9 rolled beam as shown. determine the principal stresses and maximum shearing stress at point a.
What kind of metals are often recommended for use at low temperatures, particularly when any sudden loading of the part is expected?
a full revolution has 100 rpm flywheel rotation. the press is equipped with two hand palm buttons mounted on the machine at a distance of 20 inches from the point of operation. How many engagement points on the flywheel would be necessary to make ..
an air-standard otto cycle uses 0.1 kg of air and has a clearance of 17%. THe intake conditions are 98 kPa and 37 C and the energy released during combustion is 1600 KJ/kg. What is the compression ratio of the cycle?
Determine the magnitude and coordinate direction angles of F3 so that the resultant of the three forces acts along the positively y axis and has a magnitude of 600lb.
Show the principle stresses on the neutral axis on a correctly oriented element relative to the axis of the beam.
the entire assembly is placed in an environment whose temperature is 200c. determine the volume of chamber 1 when thermodynamic equillibrium has been estabilished.
Two tow trucks lift a 660 lb motorcycle out of a ravine following an accident. If the motorcycle is in equilibrium in the position shown, what are the tensions in cables AB and AC?
The velocity profiles at locations x=0.1, 0.30 and 0.5. Plot contours of u-velocity and v-velocity. How many iterations did it take to get your solution?
calculate the mass of mixture produced at the mixing stage, the mass jam produced from the kettle and the mass od water evaporated from the kettle.
Air enters a 0.6 m diameter fan at 16 deg C, 101 kPa, and is discharged at 18 deg C, 105 kPa, with a volumetric flow rate of 0.35 m^3/s.
Determine the stress in a stay at a given temperature. A steel 'stay' of effective length 5m is fitted in between the walls of a ships refrigerated compartment when the temperature is 18 degrees centigrade.
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