Question

The settling velocity of an object is a function of particle density and size and can...

The settling velocity of an object is a function of particle density and size and can be determined by Stokes's Law.

A) Calculate the settling speed for the bacterial cell with a diameter of 1, 2 and 50µm , with a density of 1.4 g cm^-3, and a viscosity of 0.01 g cm^-1s^-1. Assume freshwater at 20 ˚C.

B) Using the settling velocity calculated in part a, calculate the length of the number of days it would take to reach the bottom of Lake Victorian (84m)?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A settling chamber is measuring 6 meters in length, 3 meters in width, and 1.5 meters...
A settling chamber is measuring 6 meters in length, 3 meters in width, and 1.5 meters in height. The air stream flowrate entering the chamber is 17 m3/s, and the average particle size (diameter) is 65 micrometers. Assume a particle density of 1800 kg/m3 and that Stokes law applies. Some properties of air: Atmospheric pressure = 101.4 kPa = 14.7 psi Air density = 1.2 kg/m3. Air viscosity = 1.85x 10^-5 Pa.s. the air stream horizontal velocity in the chamber...
particle density: 1.05g/cm^3 particle diameter: 10 micrometer water density: 1g/cm^3 viscosity of water is 1 centipoise...
particle density: 1.05g/cm^3 particle diameter: 10 micrometer water density: 1g/cm^3 viscosity of water is 1 centipoise using a laboratory centrifuge to collect particles in a water-filled test tube. what is the time for particles to travel from the top to the bottom of the 10 cm long test tube. The centrifuge is rotating at 500 rpm and the top of the test tube is 5cm from the axis of rotation. You can assume the terminal velocity can be reached instantaneously...
A packed bed reactor has the reaction A --> B occurring. The rate law is –rA...
A packed bed reactor has the reaction A --> B occurring. The rate law is –rA = kCA where k = 15 L/g-min. The superficial gas velocity is 4.8 kg/m2-s with a density of 0.45 kg/m3 and a viscosity of 3.9x10-5 kg/m-s. The porosity, catalyst density, and particle diameter are, respectively, 0.45, 2.2 g/cm3 and 0.255 cm. The cross sectional area of the reactor is 12 cm2. The inlet pressure is 100 kPa. Calculate the conversion ‘X’ when the catalyst...
In addition to the buoyant force, an object moving in a liquid experiences a linear drag...
In addition to the buoyant force, an object moving in a liquid experiences a linear drag force Fdrag = (bv, direction opposite the motion), where b is a constant. For a sphere of radius R, the drag constant can be shown to be b = 6πηR, where η is the viscosity of the liquid. Consider a sphere of radius R and density ρ that is released from rest at the surface of a liquid with density ρf. a. Find an...
A grey body is one whose absorptivity 1. does not vary with temperature and wavelength of...
A grey body is one whose absorptivity 1. does not vary with temperature and wavelength of the incident ray 2. is equal to its emissivity 3. varies with temperature 4. varies with wavelength of the incident ray A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal 1. potential energy. 2. kinetic energy. 3.temperature. 4. intermolecular forces of attraction. A liquid of density 1000 kg/m3...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT