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A toggle joint is a mechanism by which a comparatively small force P produces or balances a force F that increases rapidly as the angle θ approaches 180°. For a given angle of θ the toggle joint becomes equivalent to a simple truss. Force P=10 lb, a=2 ft, b=5 ft, and c=1 ft, as shown. Find force F. Neglect friction and the weights of the members.
Compute the fugacities of ethane and n-butane in an equimolar mixture at 373.15K at 1, 10, and 15 bar total pressure assuming that the Lewis-Randall rule is correct.
What the entropy production and the heat transfer rates are in a newly designed valve that has been designed to control the flow of saturated liquid ammonia.
a composite wall is to be constructed of 14 inch stainless steel k10.5 buthr-ft-degrees f 3.0 inches of corkboard
a carnot refrigerator is used for making ice. water freezing at 32 f is the cold reservoir. heat is rejected to a river
the service life of a battery used in a cardiac pacemaker is assumed to be normally distributed. a random sample of 10
An arrow has been shot with 10% probability of hitting a target. If 10 arrows have been shot independently,1. What is the probability that the target will be hit at least once?2. what is the probability that the target will be hit exactly once?
What is the discharge revised discharge pressure (guage pressure) of the compressor ? Is the assumption of change in temperature valid for calculating the discharge pressure of the compressor ?
to conserve water and energy a flow reducer is installed in the shower head shown here. if the pressure at point 1
a 12.7 mm diameter twist drill is used to drill a hole in a low-carbon steel workpiece using a feed of 0.3 mmrev and a
An inventor wants to increase the efficiency of wood burning stoves by reducing the energy lost through the exhaust stack. He proposes to accomplish this by attaching fins to the outer surface of the chimney, as shown schematically below.
consider fully developed condition in a circular tube with constant surface temperature ts lt tm. determine whether a
Assuming a chain growth probability of 0.8, calculate the mole yields for hydrocarbons with 1-24 carbon atoms using the ASF distribution. How does this distribution compare to that of a 0.9 chain growth probability.
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