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A gymnast having a mass of 80 kg holds the two rings with his arms down in the position show as he swings downward. His center of mass is located at point G1. When he is at the lowest position of his swing, his velocity is (Vg)1 = 5 m/s. At this position he suddenly lets his arms come up, shifting his center of mass to position G2. Determine his new velocity in the upswing and the angle to which he swings before momentarily coming to rest. Treat his body as a particle.
a steam turbine receives water at 15 mpa 600oc at a rate of 100 kgs shown in figure q4 below. in the middle section 20
air at 80 degrees fahrenheit and 80 percent relative humidity is cooled to 51 degrees fahrenheit at a constant pressure
a particle is launched with a horizontal velocity v0 0.55 ms from the 30 degree position shown and then slides without
The force exerted on the cue ball by the cue is horizontal. Determine the value of h for which the ball rolls without slipping. (Assume that the frictional force exerted on the ball by the table is negligible.)
a rigid insulated container has two rooms seperated by a membrane. room a contains 1 kg air at 200 degrees celsius and
What is the composition, in atom percent, of an alloy that consists of 5.5 wt% Pb and 94.5 wt% Sn?
feed at 10 ccelsius containing 20 solids enters an evaporator operating at 90 ccelsius. saturated steam90 quality
what is a plasticizer? consider a polymer with a plasticizer. how the crystallinity of polymer will be affected by
Calculating a Constant Pressure Process, In a constant pressure, nonflow process, 6Btus of heat are added to a gas while the volumes change from 1.6ft^3 to 2.0ft^3
two barges each with a displacement mass of 550 mg are loosely moored in calm water. a stunt driver starts his 1510-kg
a shunt dc motor has ra 0.3 u03a9 and vt 999.9 v. for an output power of 31.6 hp we have nm 1483 rpm and ia 145.8 a.
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
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