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A 0.16 kg hockey puck (rubber disk) is moving on an icy, frictionless, horizontal surface. At t =O, the puck is moving to the right at 3.0 mis. Calculate the velocity of the puck (magnitude and direction) after a force of 25 N directed to the right has been applied for 0.05 sec.
A pump fitted with 50mm bore ball bearings uses oil whose viscosity ranges from 100cSt at cold pump start-up to 7.5Cst when running at maximum speed and load. If these viscosities are the safe limits for the oil, specify the maximum start-up speed an..
a 20 mm diameter steel bar is to be used as a torsion spring. if the torsional stress in the bar is not to exceed 100
a 120 lbf 534 n skydiver is free-falling at an altitude of 6500 ft 1980 m. estimate the terminal velocity in mph for
a post-hole digger is mouted on a tractor. the power unit of the machine applies a torque of 800 lb.in to the auger and
in a rankine cycle with reheat steam at 500c expands in a high pressure turbine until it reaches the saturated vapor
a bullet of mass 81gm and moving with a velocity of 300msec is fired into a log of wood and it penetrates to a depth of
air enters the compressor of a regenerative gas-turbine engine at 300 k and 100 kpa where it is compressed to 800 kpa
A vehicle of mass 1500kg and track 1.8m has a centre of mass located centrally at 1,1m above the ground. It has to travel around a bend of 56m radius to the centre of mass.
solar energy is used to warm a large collector plate. this energy in turn is transferred as heat to a fluid in a heat
Water enters one stream of an unmixed stream heat exchanger at 20°C and increases in temperature by 10°C. Air enters the second stream on the heat exchanger at 400°C and 5 kg/s. The air temperature at the exit of the heat exchanger is 200°C cooler th..
problem 1heat is being generated uniformly throughout a sphere at volumetric rate 4. the radius of the sphere is r and
a rigid 10m3 tank contains water initially at 120 c with 60 liquid and 40vapor by volume. a pressure-relief valve on
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