A contaminant is added as a point source to ground water flowing with a constant velocity of 4x10-6 m/s. Assuming longitudinal () and two transverse dispersivities (a, and az) of 1.0, 0.1 and 0.01 m, determine the spatial standard deviations (O, Oy, O:) in the plume size after 400 m of transport for a) if the contamination is nonreactive; b) if the adsorption reaction for the containment has a retardation factor (Ra) of 1.5.

Q: history of cad

A: The abbreviation CAD refers to 'computer-aided design.'

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A: Foreshocks are earthquakes at the same location which precede larger earthquakes.

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A: Query is about the value of supply of concrete

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A:

Q: ccuracy, precision, Systematic and random errors.

A: The concept where the idea of the extent of  closely a measurement or observation comes to measuring…

Q: Is sigma xy horizontal and sigma xz vertical

A: Reference: wikimedia commons

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Q: MAY 30 For the truss shown below disregarding the weight of the structure: 20 KN All vertical…

A:

Q: what about CB, IH, AB & AB

A: To find zero force members.

Q: What is a site plan? Discuss it. (Minumum 250 words)

A: Que:- What is a site plan? Discuss it. (Minumum 250 words)

Q: As a civil engineer student what is the importance of alphabet of lines?

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Q: Define oriented water.

A: Oriented water or water oriented:

Fire Place Construction and Layout

A fireplace is a chamber, made of different materials usually constructed to contain the fire for various applications. A fireplace is often known as a hearth. Fireplaces can be made of bricks, steel, stone, and concrete. Fireplaces serve as room heaters for cold areas and vary in design and heat efficiency.