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The pedal-chainwheel unit of a bicycle is shown in the figure. The left foot of the rider exerts the 40-lb force, while the use of toe clips allows the right foot to exert the nearly upward 20-lb force. Determine the equivalent force-couple system at point O. Also, determine the equation of the line of action of the system resultant treated as a single force R. Treat the problem as two-dimensional.
water contained in a closed, rigid tank, initially saturated vapor at 200C, is cooled to 100C. determine the initial and final pressure, each in bar. locate the initial and final states on a sketches of the p-v and T-v digrams.
the motor of a speed boat is shut off when it has attained a speed of v0. now the boat is slowed down by a retarding
determine the intersection points of the following pairs of curves. follow the following steps for each problemi. use
Consider 1.0 kg of austenite containing 1.15 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).
a tube with elastic modulus of 75 gpa is used to support a compressive load. it is required that this tube must not
the train engine on the left a is at rest and the one on the right b is coasting to the left. if the engines are
initially an insulated rigid tank contains 28.5 kg of water at 23.4oc and 101 kpa. the tank also contains a 3.14 kg
a smooth nozzle with a tip diameter of 2 in. terminates a 6 in. waterline. calculate the mean velocity of efflux from
1 a presser relief valve has a pressure setting of 1500 psi. compute the horsepower loss across the valve if it returns
a turning operation calls for a single pass on a 3 diameter part down to 2.800 on a lathe using a hss high speed steel
The main elevator A of the CN Tower in Toronto rises about 349 m and for most of its run has a constant speed of 22 km/h. Assume that both the acceleration and deceleration have a constant magnitude of g/3 and determine the time duration t of the ..
a mass of 0.20 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 200kpa. initially 75 of the
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