Recent content by irodus

Pleeeease can somebody help me on this, its driving me crazy! I have inserted .jpg files of my working in the original post, hopefully nobody has a problem opening these! Thanks heaps in advance guys, appreciate any help on this :)

Am I thinking about this the wrong way?

Thanks for the reply :) That is clear to me now, I understand about the value for k. Unfortunately I still can't work out how to implement this into my working. You said that Surface area=k*int(dA) So when k=(H/R), and int(dA)=A (of disc underneath cone- as you said before), then...

Sorry to bother you, but I don't think I understand your above post. If z=b(1-r/R) we have: z=kr b(1-r/R)=kr k=(b(1-r/R))/r How do you get k=L/R from this? Im not sure how this relates to the cone, as now we have introduced more variables. I thought R was just a way to describe r...

bump Any help here would be greatly appreciated! :)

Thanks for your response! And sorry for attaching a .doc file however I have not worked out how to put equations into this text. I have had some trouble in working out what k is, in z=kr. Firstly I let r=R as it should, then when z=h, k=R/h. I think there is a problem with my logic here. So...

Homework Statement Consider a cone of height H and base radius R with its apex (tip) at the origin, and its base at circular end at z = H. Derive the equation for the surface of the cone in cylindrical coordinates. You may assume z is proportional to r. Homework Equations I assume the...