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A centrifugal clutch has four shoes, each of mass 2 kg which are held on retaining springs of stiff ness 10 kN m 1 . The internal diameter of the clutch drum is 600 mm and the radius of the center of gravity of the shoes when in contact with the drum is 250 mm. The stationary clearance between the shoes and the drum is 20 mm and the coffin client of friction is 0.25. Determine (a) the speed at which the clutch starts to engage, (b) the power transmitted at a speed of 1500 rpm.
A tank of compressed air is at 40°C and 10 atm. 1 third of the gas is removed for inflating a car tire. The tank is allowed to exchange heat with the surroundings to maintain its temperature at all times. What kind of a process is this? What is the p..
air is heated at steady state as it flows through a constant area duct. at the inlet the pressure is 2.8 bar the
superheated steam pressure at a 1 atm mean temperature of 800kand mass flow rate of 0.15kgs enters a thin walled
Model the earth as a sphere with a diameter of 8,000 miles. Using 14.7 psia as the average pressure at the earth's surface and ignoring variation in g with altitude, estimate the weight of the earth's atmosphere in lbf, and its mass in lbm.
a cylindrical tank with its axis horizontal has a diameter of 2.0 m and a length of 4.0 m. the ends if the tank are
sterling silver is a metal alloy containing silver and copper. calculate the composition of both elements in mass
bob is asked to design a system for heating process water in a chemical plant. the system is to heat 500 gallons of
A food processing facility makes sweetened iced tea by feeding 1.00 kg H2O/min of water along with m1 kg of dry tea leaves/min into a brewer. From there, the leaves and water enter a filter that separates m2 kg of wet tea leaves/min from unsweetened ..
g9.81 and pwaterwater density 1000kgm31assuming there are both a pressure gage and a manometer attached to a gas tank
A 90-N force is applied to the control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into horizontal and vertical components.
an aluminum polycrystalline specimen is elastically compressed in plane strain. if the true strain along the
Consider a Samuelson model with one commodity in each period and where the endowment of every consumer is e = (1, 0). Let the utility function of every consumer be u(x0 , x1) = x0 + 2x1. (a) Draw a diagram that shows the set of feasible stationary a..
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