I didnt see the subject that it is for. But this is a question I am stuck on for Air Pollution Sciences. How much faster does a 10-micrometer aerodynamic diameter particle settle than a 5- micrometer diameter particle of the same shape and density? (use stokes law)

What precautions should you take to prevent injuries when dealing with heavy loads?

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way