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At time t=0, the postion vector of a particle moving in the x-y plane is r=5i m. By time t= 0.02 s its position vector has become 5.1i + 0.4j m. Determine the magnitude v(av) of its average velocity during this interval and the angle Theta made by the average velocity with the positive x-axis.
a roller coaster starts from rest at a rolls down the track to b describes a circular loop of 40-ft diameter and moves
the drinking water needs of a residential hall with 20 students is to be met by a bubbler type water fountain. the
a cantilevered bar is 500 mm long with square cross section 25mm x 25 mm. three perpendicular forces are applied to its
Calculate the modulus of elasticity of the aluminium alloy. Use the modulus to determine the length of a 1.25 m bar to which a stress of 210 MPa is applied.
oxygen is flowing through a nominal 2 inch schedule 40 steel pipe pipe at a velocity of 10 fts. the oxygen is at a
an appropriate correlation for heat transfer by natural commotion from a honzontal pipe to the atmosphere isnu
water flows through a pipe at an average temperature of t70degc. the inner and outer radii of the pipenbspare r16cm and
an air conditioner using r-134a as the working fluid and operating on the ideal vapor-compression refrigeration cycle
solution of oblique-angled triangle all threesides known two side at 7.5 in. and base at .3437 in. what are the angles ?
the 800-lb load is being hoisted at a constant speed using the motor m which has a weight of 90 lb. determine the
block b moves downward with a constant velocity of 20 mms at t0 block a moving upward with a constant acceleration and
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
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