What is the true settling velocity for such a particle

Assignment Help Civil Engineering
Reference no: EM13312695

An old occupational hygiene rule of thumb is that a 10 micrometer (micron) silica particle settles at a rare of 1 ft/min (0.5 cm/s). What is the true settling velocity for such a particle? The density of silica is 2600 kg/cubic meter (2.6 g/cubic centimeter).

Reference no: EM13312695

Questions Cloud

Determine cunningham correction factor at standard condition : For a .15 micrometer diameter spherical particle (density of particle = 2500 kg/cubic meter) determine the Cunningham correction factor at standard conditions.
Explain the box length to decrease the transition energy : For a particle in a box system, by what factor do you need to change the box length to decrease the transition energy by a factor 5 for a fixed value of mass
Define why does bromine add faster to a disubstituted double : Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
Depict a mechanism for the reaction of cyclohexene : If one reacts bromine in water with a double bond a vicinal halohydrin is formed. Provide an explanation for this result and show a mechanism for the reaction of cyclohexene with bromine in water.
What is the true settling velocity for such a particle : An old occupational hygiene rule of thumb is that a 10 micrometer (micron) silica particle settles at a rare of 1 ft/min (0.5 cm/s). What is the true settling velocity for such a particle? The density of silica is 2600 kg/cubic meter (2.6 g/cubic ..
Explain ionization involves completely removing an electron : Ionization involves completely removing an electron from an atom. What wavelength of light contains enough energy in a single photon to ionize a hydrogen atom
What is the magnitude of the acceleration of the proton : A proton accelerates from rest in a uniform electric field of 524 N/C. What is the magnitude of the acceleration of the proton
Explain the silver-silver chloride electrode : Suppose that the silver-silver chloride electrode in the figure is replaced by a saturated calomel electrode. Calculate the cell voltage if [Fe2+]/[Fe3+] = 5.0 10-3. V
What would you consider some of the key considerations : Explain your choices. Is the organization you work for (or one that you are familiar with) meeting these key considerations?

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine a complete set of dimensionless parameters

Water flows over a dam. Assume the volume flowrate per unit length q along the dam is a function of the head h , width b, acceleration of gravity g, f luid density and the fluid viscosity. Determine a complete set of dimensionless parameters

  Determine the effluent soluble substrate concentration

Lab studies have shown that the rate constant associated with the process are as follows: k = 0.95 mg COD/mg VSS-day; Y = 0.48 mg VSS/ mg COD, half-saturation K = 85 mg COD/L; ke = 0.07 d-1.

  What must ph be raised to in order to precipitate of iron

Groundwater in Taupe, Arizona, initially contains 1.8 mg/L of iron(III). What must the pH be raised to in order to precipitate 0.3 mg/L of the iron

  Value of the kinetic energy correction coefficient

Assuming that the velocity variation within the main channel and the floodplain subsections is much smaller than the change in mean velocities between subsections, find the value of the kinetic energy correction coefficient.

  Express f in cartesian vector form using coordinate system

The cable from point A to point B exerts a 900 N force on the top of the television transmission tower that is represented by the vector F. Express F in Cartesian vector form using the coordinate system.

  Determine the power that must be supplied

determine the power that must be supplied to the motor at this instant. The motor has an efficiency of 76 %. Neglect the mass of the pulleys and cables.

  How to specify the state of stress in the wall of the tank

The tank has an inner diameter of 1.5 m and a wall thickness of 18 mm. If the pressure in the tank is p=1.20MPa, determine the force in the 16 bolts that are used to attach the cap to the tank. Also, specify the state of stress in the wall of the ..

  Load that a boat can carry without sinking in a lake

The hull of a boat has a volme of 150m and the total mass of the boat when empty is 8560kg. determine how much load this boat can carry without sinking in a lake.

  Compute required weight of coarse aggregate per cubic yard

A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.

  Find what is the gage pressureat the bottom of the tank

Water occupies the bottom 0.8 m of a cylindrical tank.On top of the water is 0.3 m of kerosene, which is open to the atmosphere. If the temperature is 20 degrees C, what is the gage pressureat the bottom of the tank

  What would be amount in moles if the container held nitrogen

A container with volume 0.2 m^3 holds oxygen and has gages showing readings of 70°C and 25 bars. Calculate the amount of oxygen (mass and moles) in the container if the atmospheric pressure is 1 bar.^3

  What is the velocity head expressed in atmospheres

What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd