Comments for Stebblog

Comment on Which Came First? Physics or Mathematics? by ruddy donaldson

ruddy donaldson — Fri, 05 Jun 2009 09:05:05 +0000

trtrt

Comment on Higher Mathematics 2005 Past Paper Help by catriona mackintosh

catriona mackintosh — Wed, 20 May 2009 15:03:59 +0000

hi can someone please help with question 10b on paper one 2005?

Comment on Higher Mathematics 2005 Past Paper Help by Francesca bell and arron gillespie

Francesca bell and arron gillespie — Tue, 19 May 2009 17:08:47 +0000

Thanks for all the responses..they have really helped us and we were stuck on a lot!

thanks again x

Comment on Some Revision Materials by Alan

Alan — Tue, 19 May 2009 14:53:21 +0000

These were really useful, thanks a lot.

Comment on Higher Mathematics 2005 Past Paper Help by Joe

Joe — Mon, 18 May 2009 16:38:06 +0000

I was wondering if i could get help with question 10 on paper 2.
i have expanded the scalar product to a.a + a.b + a.c and have found that a.a is 9 and a.b is 0 but how do i find the angle for a.c? it doesnt give it in the question and im not sure how to find it?

Comment on Higher Mathematics 2002 Past Paper Help by missmunro

missmunro — Mon, 18 May 2009 14:39:40 +0000

a=4

Comment on Higher Mathematics 2002 Past Paper Help by Philip

Philip — Sun, 17 May 2009 12:47:17 +0000

Hi could u tell me the final answer to the last question in paper two of 2002 please? Thanks

Comment on Advanced Higher 2007 Past Paper by missmunro

missmunro — Fri, 15 May 2009 11:53:07 +0000

You need to find the second derivative

d dy dt
- — —
dt dx dx

sorry about the form just differentiate dy/dx with respect to t then multiply by dt / dx.

Comment on Advanced Higher 2007 Past Paper by Amanda

Amanda — Fri, 15 May 2009 11:12:49 +0000

thanks very much for that.

Can i also ask, how do you find the acceleration after working out the speed using parametric equations?

Working through the peter westwood book and its asking me to show that the magnitude of the acceleration is a constant.

Thanks again.

Comment on Higher Mathematics 2005 Past Paper Help by Mr Jones

Mr Jones — Thu, 14 May 2009 21:40:44 +0000

Sorry no one picked up on this request Ella. Just in case you are still checking…

7,24,25 is a Pythagorean Triple. That might help. Might not!

Also cos(2x)= … several things! - that might help too.