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The maximum force applied to the tip of the allen wrench before the bolt loosened is 60 N. Assume the wrench has a circular cross section with a radius 2 mm. The length of the short segment (touching the screw) is 3 cm and the length of the long segment (to which the force is applied) is 6 cm. Write the stress tensors at points Aand B, both of which are on the top (z-facing surface) of the wrench. Hint: you will need to use some results from Chapter 5.
steam enters a well-insulated turbine at 10bar 300oc and 50ms and exits at 1bar and 100ms. calculate the steady-state
Design value for the molded friction material and steel disks to be used 0.06 and pressure max=1400kpa. Determine appropriate values for the disk inside dimmeter, the total number of disks and the actuating force?
In a dairy plant, milk at 4°C is pasteurized continuously at 72°C at a rate of 12 L/s for 24 h a day and 365 days a year. The milk is heated to the pasteurizing temperature by hot water heated in a natural-gas-fired boiler that has an efficiency o..
A heat exchanger is to heat water (Cp= 4.18 KJ/Kg.C ) from 25 to 60 C at rate of 0.2 kg/s. the heating is to be accomplished by geothermal water ( Cp= 4.31 KJ/Kg.c ) available at 140C at a mass flow rate of 0.3Kg/s. Determine the rate of heat transfe..
Each girder of the lift bridge (see figure) is 180 ft long and simply supported at the ends. The design load for each girder is a uniform load of intensity 1.6 k/ft.
two blocks of rubber with a modulus of rigidity g 5 12 mpa are bonded to rigid supports and to a plate ab. knowing that
An alumnus of your engineering program has donated money to build a jogging track that would encircle your campus. The track will be made of a recycled rubberized material. How much of this rubberized material will be needed?
an engineer needs to monitor a flow of 20degc gasoline at about 250plusmn25 galmin through a 4- in-diameter smooth
consider the following pulse width modulation rc circuit. the circuit consists of a switch two resistors and a
consider the following single-dwell cam specificationrise segment 0 to 20 mm in 180 degreesdwell segment at 20mm
Air, initially at 160 kPa and 325 K undergoes a polytropic state change to 256 kPa and 357.5 K. What is the poly tropic exponent of this process?
What maximum thickness of aluminum foil could be used to fabricate the windows if no more than 3.5% of the radiation is to be absorbed by them?
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