Jump to content
aberdeen-music
Sign in to follow this  
Rach_69

Higher Physics

Recommended Posts

Does anyone know the formula for buoyancy as i dont seem to be able to find it

i know its p= (roe) gh for the top and then the bottom but what else is to it?

My exam is at 1 :down:

Share this post


Link to post
Share on other sites

To find the upthrust you take the pressure at the bottom away from the pressure at the top (using p=roe g h to find the pressure) Then the difference in pressures is the upthrust... or at least i think thats it...

xxx

Share this post


Link to post
Share on other sites

Well its the only thing you need to work out as far as boyancy force is concerned.. however, sometimes they can be pretty sneeky and decided to change it into an unbalanced forces question, in which case all you need to do is use fun=m x a and just remeber that weight is a force as well. Any more questions?

xxx

Share this post


Link to post
Share on other sites
in which case all you need to do is use fun=m x a and just remeber that weight is a force as well. Any more questions?

xxx

or as st machar standard grade physics class used to call it

fun= yer ma... :rolleyes:

Share this post


Link to post
Share on other sites
You just make it too easy lass :p

EDIT: Good luck in the exam mind :)

i didnt even think of that!

guh!

thanks very much for the help

the exam wasnt as hard as i thought it would be but i still dont think i did too well in it

ah well, only the prelim but that means ive still got the real thing to go in May :(

Share this post


Link to post
Share on other sites
Guest haigyman
i didnt even think of that!

guh!

thanks very much for the help

the exam wasnt as hard as i thought it would be but i still dont think i did too well in it

ah well' date=' only the prelim but that means ive still got the real thing to go in May :([/quote']

don't worry, i'm not even going to bother

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...