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A 10 cm2 plate has an electric heater installed that produces a constant heat flux. Saturated liquid water at 10 °C flows across the plate at a velocity of 3 m/s. a. Where along the plate is T = Tmax? b. Is the flow laminar or turbulent? Justify your answer. c. What is the total heat which can be dissipated if the plate temperature is not to exceed 80 °C
the figure below shows the geometrical stress concentration factor k for a flat bar loaded in uniaxial tension. the
consider a steam pipe of length l 9 m inner radius r1 5 cm outer radius r2 6 cm and thermal conductivity k 12.5
if a piping system is designed and sized for a uniform pressure loss of 4 psi per 100 feet of piping and the
a 12-in radius cylinder of weight 16-lb. rests on a 6 lb carriage. the system is at rest when a force p of magnitude
A jack-screw has a handle 35 inches long and a pitch of 7/32 inches. If a pull of 15 lbs. is required at the end of the handle to lift a 3,000 lbs.
a 30 g bullet is fired with a horizontal velocity of 450 ms through 3-kg block b and becomes embedded in carrier c
determine the energy loss that will occur if water flows with a velocity of 7fts through a gate vlave fully open. what
the owner of a new home is considering the economics of current and proposed designs. the current design is the
a man is changing his tire at the top of a hill. he is rolling the spare at 4.83 fts when he loses control and the
Two bars, one having a circular section of radius b, the other an elliptic section with semiaxes a,b. For equal angles of twist, which bar experiences the larger shearing stress?
block c starts from rest and moves downward with a constant acceleration. knowing that after 5 s the velocity of block a relative to block d is 8 ft/s, determine a) the acceleration of the block c. b) the acceleration of portion e of the cable.
reflection-existing competenciespart-11. reflect on and self-assess your current achievements of engineers
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