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(Rigid body rotation) Derive the equation for the shape of the surface zsurf(rsurf) for a rigid-body rotation of water at angular speed (rad/sec). Follow this process:
1) Start with pressure gradient in cylindrical coordinates:
2) Write out force balance in r and z directions
3) Integrate using the method we did in class: F = ma in r-direction gives: P(r,z) = P(r) + f1(z) F = ma in z-direction gives: P(r,z) = P(z) + f2(r)
4) Solve for z(r) at surface, where P = Patm = constant
DUTY CYCLE RATING Since, arc welding power sources are delivering high currents for welding; the components of such a system are bound to get heated. In order to have increase
Illustrate six typical application of primary cells. (b) Illustrate six typical applications of secondary cells. (c) Illustrate the advantages of a fuel cell over a conventional
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Express the force in vector form: A force of 400 N forms angles of 45 o , 65 o and 120 o , respectively, along with the x, y and z axes. Express the force in vector form.
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assumptions made in deriving a bending formula
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The tapered, two-cell beam is subjected to a pure torque of 50,000 in-lb counter clockwise. The length of the beam (normal to the figure) is 100 in. The flange areas are 1 sq in an
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