Do we know if the smaller particles that bounce at random as you might assume, off of the dust particles, increase in speed or decrease when they hit the dust? Is there a way to determine that speed or is it random too? I guess it would depend on the density of the dust, right?
2006-11-08 04:28:53 · 2 answers · asked by happylife22842 4 in Science & Mathematics ➔ Physics
Are all dust particles the same physically?
2006-11-08 04:29:55 · update #1
Hi,
Not all "dust" particles are the same, they have different sizes and masses. Usually (at least in the semiconductor industry) the sizes are in the 0.6 um to 1.5 um range. I honestly don't know what the mass is, so it is difficult to calculate momentum changes.
Hope that helps a little,
Matt
2006-11-08 04:34:01 · answer #1 · answered by Matt 3 · 0⤊ 0⤋
me again.... think of it this way.....a pollen falls to water pollen is much larger than the water molecules..same thing happens the rapid moving particles hit it..THEN BOUNCE BACK ( u shud now the movment ofwater particles were they move around each other)..all of the water particles hit the pollen grain from different directions makes a net force then....etc...replace this with dust and air particles(by air i mean oxygen nitrogen etc...) wen air hits the dust it bounces bak hits the wall or another air particle or maybe another dust partice bout the speed i dunno but the air particles move at an extremely fast speed and exert huge pressue of 100000pascals because of their very small area of contact at force and area is inversly proportianal to pressure well i hope that helps
bout the additional...are u serious?!?!??!of course they arent the same but u really got me intrested in knowing wat dust consists of :D
2006-11-08 12:44:46 · answer #2 · answered by Anonymous · 0⤊ 0⤋