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A particle moves along a spiral described by the equation r=r(inital)+kappa*theta, where r(inital) and kappa are constants, and where theta is in radians. Assume that theta dot =alpha*time, where alpha= 0.15rad/s^2 and t is time expressed in seconds. If r=.25m and theta = 0 for t=0, determine kappa such that, for t=10s, the acceleration is completely in the radial direction. In addition, determine the value of the polar coordinates of the point for t=10s.
a 120 lbm base jumper extreme parachutist leaps from el capitan in yosemite national park 3000 ft vertical drop head
Compare the ideal COP of R-134a and R-22 at an evaporating temperature of 40 F and 20 F superheat and condensing temperature of 120 F with 15 F sub cooling with the actual compressor COPs calculated from the manufacturer's performance tables.
1 for a separations process it is necessary to determine the vle compositions of a mixture of ethyl bromide and
the acme company claims to have designed an adiabatic turbine that will produce 105btu per pound of steam. the
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Determine the radial acceleration of a point on the outer surface of the 36 inch diameter tires of a jet powered car traveling at 660mph.
it has been proposed that energy be taken as heat from the atmosphere around milwaukee and used to run a power plant.
a 4-bit ad converter is applied to convert a bipolar signal -5v to 5v. what is the conversion resolution? code width?
a solid cylinder of mass 5 kg and radius of 0.1m is released from on a ramp and rolls without slipping. if height of
solid steel shaft d 20mm is subjected to a torque of 1200nm. what size hollow circular steel shaft could be used to
air is compressed in an isentropic process from an initial pressure and temperature of p1 90 kpa and t1 22 oc to a
the pressure of 200 kgs of water is to be increased from 1 atm to 4 mpa. the water enters through a 20-cm-diameter pipe
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