Recent content by shamstar

are intermolecular an van der waals forces the same thing? I am doing a physics assignment on surface tension and am unsure of what forces are present. i know that there is hydrogen bonding, but what else? thanks

i'm looking into the physics behind surface tension, and am a little confused about the intermolecular forces that act on the liquid. I understand that hydrogen bonding occurs because of the positive and negative atoms in a water molecule. However, i am unsure of exactly what other forces occur...

thanyou both so much. let's hope a get an A on my assignment! thanks again

i am doing a physics assignment on the realationship between surface tension and temperature. i have calculated the surface tension at various temperatures using a capillary tube and measuring the height. i was given the formula: surface tension=(densityxradius of tubeheight of...

one more question about the formula you gave me. when i get an answer, is the units for surface tension in dyns/cm or ergs/cm^2? thankyou

thankyou so much! you're a legend! this helps me so much. thanks again.

i found an equation on the internet that seems easy enough to use. it uses the idea of putting a test tube into a beaker of water and measuring the height difference. it is : y = (2 gammalg cos theta) / (dgr) where • y is the vertical displacement (up if positive, down if negative) •...

thanks, that helps alot. just one thing. when you've measured the height of the liquid column, how do you find the force? do you use mass x gravity? how does the u shape effect the surface tension measurment? thanks

help! surface tension i am doing a physics experiment on the relationship between a liquids temperature and resulting surface tension. i am going to record the various surface tension of various liquids at different temperatures. the only problem is, is that I am not sure how to accurately...

i have to complete an experiement for physics involving momentum. it needs to be fairly simple, yet be complex enough for me to write a big report on it. It would be good if it were to involve several physics formulas. if you have any ideas then please let me know asap. I am desperate! thanks.