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If a particle's position is described by the polar coordinates r = ( 2 sin 2u) m and u = ( 4t) rad, where t is in seconds, determine the radial and tangential components of its velocity and acceleration when t = 1 s.
heat treatment is common in processing semiconductor materials. a 200- mm-diameter silicon wafer with thickness of 725
Determine the maximum speed at which the car with mass can pass over the top point A of the vertical curved road and still maintain contact with the road.
xerted on the shaft shown in the figure, which rotates at 1150 rev/min and supports a 10-kip bending force. Use a 1095 HR steel. Specify a diameter d using a design factor of nd = 1.6 for a life of 3 min. The surfaces are machined.
Air at 90 kpa and -7 C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves with a low velocity at a pressure of 100 kpa. The exit area of the diffuser is 5 times the inlet area. Determine (a) the exit temperature and (b) th..
steam flowing through a long thin-walled pipe maintains the pipe wall at a uniform temperature of 500k. the pipe is
the dredger is loading a sand onto a barge.the sand leaves the dredger pipe at 4ft/s with a weight flux of 850 lbs/s. estimate the tension on the mooring line caused by this loading.
advanceddesignmethodologies productandengineeringdesignreview
an engine block with a surface area measured to be 0.90m2 generates a power output of 55 kw with a net engine
Calculate the ultimate tensile strength (engineering) of a material whose strength coefficient is 700 MPa and a tensile test specimen which necks at an engineering tensile strain of 0.35.
Determine the number of revolutions that the motor executes in a) reaching its rated speed, b) coasting to rest.
tom and jim are kicking a ball which has a mass of 490g back and forth. tom kicks the ball with a speed of 5ms
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 x 1022 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 an..
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