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A painter is standing on a work platform that is 27 feet above ground level. For fall protection, the worker's safety harness D-ring is attached to a 12-foot shock absorbing lanyard that is securely fastened to the structure at a point 40 feet above ground level. Does this arrangement violate OSHA standards for fall protection? Explain.
In 1975 the roof of Montreal's Velodrome, with a weight of 360 kN, was lifted by 10 cm so that it could be centered. How much work was done on the roof by the forces making the lift?
A 200 kg crate is to be supported by the rope and pulley arrangement shown. Determine the magnitude and direction fo the force P that must be exerted on the freee end of the rope to maintain equillibrium.
calculate the static thrust of the turbojet engine having mass flow 88lbmsec the ratio of air and fuel mass flowing
during an emergency launch operation to fill a missile with rp-4 a kerosene-based fuel the ullage volume of the fuel
Draw a graph of system head and fluid power against flow rate on one sheet of graph paper, using the values determined in(c)
the tank has a 180mm diameter and 12 mm wall thickness. knowing that the tank contains compressed air under a pressure of 8 Mpa, determine the magnitude t of applied torque for which the maximum normal stress in tank is 75 Mpa.
Friction between the piston and the cylinder wall can be neglected. For the air, determine the initial and final pressures, in kPa, and the work, in kJ.
Aim of this demonstration is to use measurements of the load required to propagate a crack (tear) in packaging tape to determine its fracture toughness and Describe the fracture behaviour of the insulation tape loaded with a small crack. Explain w..
Cortical bone gets weaker with aging, but it turns out that diaphyseal diameters can also change with aging, particularly in males, such that the safety factor of the diaphysis is approximately constant with aging.
An auto speedometer is graduated in 5 mph increments and has an accuracy rated to be within ±4%. Estimate the uncertainty in indicated speed at 60 mph.
Block A has a mass of 3 kg and B has a mass of 5 kg. If the system is released from rest, determine the velocity of each block in t=4s. Neglect the mass of the pulleys.
design a process for the manufacture of 106 kg per year of mayonnaise. the shelf life of the product is expected to be
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