Calculate the time needed for the following particles

Reference no: EM13559332

1.For a temperature of 10 degree C, calculate the time needed for the following particles to settle 0.3m:

a) a 20um mineral particle with a specific gravity of 2.1, and

b) a 2 um organic particle with a specific gravity of 1.2

2.Assume that the current cost for a 120-pupil school constructed of wood frame for a city is $1,800,000. We are asked to develop an order-of-magnitude estimate for a 90-pupil school ?

Reference no: EM13559332

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