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A crane is lifting concrete to a construction project where the acceleration of gravity is 31 ft/s2. If a 400 lbm bucket is lifted from the ground with an acceleration of 6 ft/s3, find the force that the crane must apply to the bucket.
air within a gas-piston assembly and initially at stp 1atm 300k undergoes a thermodynamic cycle consisting of the
How will notches and holes affect the deflection of a cantilever beam? ie. increase or decrease? (Please provide citations)
a 2 m3 tank contains nitrogen at room temperature 25degc with a gage pressure of 2 mpa. a barometer in the room shows
Calculate the actual power transmitted to the second pulley and calculate the power which can be transmitted if the maximum tension in the belt is limited to half of the ultimate strength of the belt.
a spherical mini submarine of diameter 3 m is designed to be operated by two persons. the submarine is used for deep
two kilograms of saturated water vapor at 600 kpa are contained in a piston-cylinder device. the water expands
air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 f to 15 psia. employing
the velocity of a lift increases uniformly from zero to its maximum value at mid-height (1.4m) in 7.5s and then decreases uniformly to zero in 7.5s. The peak power output is 6kW when the velocity is maximum, determine the maximum lift force provid..
a shaft is made of a steel alloy having an allowable shear stress of 12 ksi. If the diameter of the shaft is 1.5 in., determine the maximum torque T that can be transmitted. What would be the maximum torque T' if a 1 in. diameter hole is bored thr..
A hydraulic shear applies 2000 lb force to a wedge. It is used to shear plate steel to rough size. The shear has a 1/4 inch thick cutting blade with a 45 degree slope. What is the ideal mechanical advantage of the wedge?
Describe the four incorrect assumptions concerning robot - arm movement that are most frequently responsible for impact accidents.
determine the angle of twist of the end B of the solid section relative to end C. The tubes have an outer diameter of 30 mm and an inner diameter of 20 mm. The solid section has a diameter of 40 mm.
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