Recent content by twiztdlogik

erm.. are you thinking of the poiseuilles equation...? i think that would work if i can transpose it to get the right formula for this situation thanks any ways!

what happens to the amplitude if total mechanical energy doubles? i thought, if there was enough mechanical energy in the spring, the amplitude would be at its maximum... like it would have stretched as far as it could, so doubling the total mechanical energy, would only make the periods...

ok, this is what i had so far... not sure if i am on the right track or not though... non smoker:2.5 x 10^-3 Pa.s smoker: 2.7 x 10^-3 Pa.s density of blood @ 1 atm: 1060 kg/m3 normal blood flow: \Delta 8.0 mmHg pressure difference: smoker - nonsmoker = 2 x 10^-4 pressure...

hey guys.. i need a bit of help on this question... For a non-smoker, with blood viscosity of 2.5x10-3Pa's, normal blood flow requires a pressure difference of 8.0 mm of Hg between the two ends of an artery. If this person were to smoke regularly, his blood viscosity would increase to...

hey.. i have a question that i am not 100% sure on... suppose a beaker of water was heated from 10 degrees to 90 degrees. does the pressure at the bottom of the beaker increase, decrease, or stay the same? any help here would be greatly appreciated! cheers KC

i have the specfic heat of water... and the MW/J was my way of saying mega watts or joules. the specific heat i have is 4.184 J g–1 K–1 what i can't figure out is how to get the amount of water. and i am not sure of what sort of answer i am going to get, or if the answers i am getting from...

how much water would 1000 MW/J heat from 18 degrees to 30 degrees? i am unsure of what formula [is there is one] to use... so any help would be GREAT! TIA:smile:

convection...nuclear reactors...** hey guys, there is one question i am having a great deal of trouble trying to find formulas and stuff for out of my textbook and don't really have the time or patience to search through hundreds of google pages :bugeye:. so any help on this would be greatly...

if i was to heat a gas [any gas] by 10 degrees celsius, using the smallest amount of heat energy, would i be better off heating the gas at constant pressure or constant volume. i think constant pressure, however i don't know how to justify my answer...:confused: cheers

oh thanks a bunch! ur a genius :biggrin:

i am having a bit of trouble with this question, and its not explained very clearly in our textbook... "what are the RMS speeds of helium an dargon in a gas at 1000 degrees C" any help would be greatly appreciated. physics is definitely not one of my strengths... =D cheers. KC