Whats the best used for cable -stayed bridge
1 answer:
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Answer:
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Explanation:
Given that; The average grain diameter of an aluminum alloy is 14 mu m with a strength of 185 MPa. The same alloy with an average grain diameter of 50 mu m has a strength of 140 MPa. (a) Determine the constants for the Hall-Patch equation for this alloy, (b) How much more should you reduce the grain size if you desired a strength of 220 MPa
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Answer:
0.4167 ft/s
Explanation:
The law of conservation is applied to point A and B.
This gives:
Hence, is the kinetic energy at the position A
is the velocity at point A
Considering point A, the kinetic energy at the point will be:
The potential energy will be:
Hence, is the potential energy and
is the kinetic energy
The potential energy is given by the following:
substituting 1 lb for mg gives 0.4167 ft for r
Then the velocity,