Recent content by CR9

Homework Statement A polar bear of mass 520 kg is floating on an iceberg in the ocean. As the ice melts, how small can the iceberg get before the bear gets wet feet? (The answer should be the volume of the iceberg). Homework Equations Buoyant Force, Fb = p(fluid)V g From a table in...

I guess my diagram is messed up even though i tried to fixed it, but yeah, C1 is in series with C and those two combined are in parallel with C1...

Please help :( -Capacitors in series and parallel Homework Statement Find the relationship between C and C1 to make C equivalent= C The diagram is as shown below:- C1 A---------------------------||----...

I don't know, Vs/vr could = 0 and it will become 1... I don't have values for Vs/Vr, r and w... Please help

as θ -> π/2, (1+sin θ) approaches 2 (sec θ + tan θ) approaches infinite? then from r/w=1/(1+sinθ )((secθ+tanθ)^(Vs/Vr-1) it will be r/w= 1/(2)(infinite)^(vs/vr)-1 What do I do with this? Please help :(

Hi Tiny Tim, I was waiting for you online just now... Anyway, I am still stuck at r/w=1/(1+sinθ )((secθ+tanθ)^(Vs/Vr-1) What do i do from here?

But there are too many unknowns, how can I solve this in order to find a value for Vs/Vr. I need to find the value for Vs/Vr and then find the angle. Please advice, tim

Hi Tiny Tim, Thanks again for quick reply. You rock! okay, so after multiplying cos top and bottom and expanding sec+ tan at the bottom as your previous post; I got: r/w=1/(1+sinθ )((secθ+tanθ)^(Vs/Vr-1) )

Hi tiny Tim, Thanks for the reply, yea I mean ( "as θ----> π/2" ?) Multiplying cos top and bottom would cancel off the sec on top, but how do i times cos inside the denominator? It has power of Vs/Vr Please advice. Thanks

Homework Statement Find limit as (r, θ)----> (0, pi/2) for the function: r= (w secθ)/(secθ+tanθ)^(Vs/Vr) Both w and Vs/Vr are constants in this question The Attempt at a Solution I tried with L'hopital but it didnt turn well as when I differentiate secθ, I got ln (secθ + tan...

Hmm, that's weird, try going to google Then google: Differential Equations- Swimming in salmon Its the first link... Hope you guys can help. Thanks a bunch!

Homework Statement 3/(2√3)=cos(3t+4.189) and therefore, 0.866=cos(3t+4.189) I need to solve for t. The Attempt at a Solution I know that cos^(-1)θ has 2 values for every 2 pi, that is at 30 and 330 degrees. But there is no limit given, so its probably from 0 to infinite,thus the question...

Hi guys, So I have gotten my assignment for my DE class and fortunately for me, someone had already posted up the questions on the net. Here it is: http://www.cengage.com/math/book_con...e/Project3.pdf I have posted this in the DE section, which i think is the wrong section to post in...

Hi guys, So I have gotten my assignment for my DE class and fortunately for me, someone had already posted up the questions on the net. Here it is: http://www.cengage.com/math/book_content/0495108243_zill/projects_archive/de8e/Project3.pdf Anyway I have managed to do a number of the...

Hey guys, So I was trying to do a few questions to prepare for my Differential Equations exam soon, and I stumbled upon this question: A mass of 1 slug is suspended from a spring whose spring constant is 9lb/ft. The mass is initially released from a point 1 foot above the equilibrium...