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Anni [7]
3 years ago
9

Water flows with a velocity of 3 m/s in a rectangular channel 3 m wide at a depth of 3 m. What is the change in depth and in wat

er surface elevation produced when a gradual contraction in the channel to a width of 2.6 m takes place? Determine the greatest contraction allowable without altering the specified upstream conditions.

Engineering
1 answer:
strojnjashka [21]3 years ago
8 0

Answer: new depth will be 3.462m and the water elevation will be 0.462m.

The maximum contraction will be achieved in width 0<w<3

Explanation:detailed calculation and explanation is shown in the image below

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a television set having apower rating of 120w and electric lawnmower of power rating 1kw are both connected to a 250v supply if
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1 british gallon = .....litres.<br>a:4.546<br>b:3.785<br>c.5.456<br>d.7.385​
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A specimen of a 4340 steel alloy with a plane strain fracture toughness of 54.8 Mpa root m is exposed to a stress of 1030 MPa. W
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It will not  experience fracture when it is exposed to a stress of 1030 MPa.

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This problem asks us to determine whether or not the 4340 steel alloy specimen will fracture when exposed to a stress of 1030 MPa, given the values of <em>KIc</em>, <em>Y</em>, and the largest value of <em>a</em> in the material. This requires that we solve for <em>σc</em> from the following equation:

<em>σc = KIc / (Y*√(π*a))</em>

Thus

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