Recent content by punjabi_monster

Homework Statement In an electrochemical cell what would happen if an electrolyte is conducting both ions and electrons? Homework Equations The Attempt at a Solution So I know electrolytes usually conduct ions and are electronic insulators. I know the electric current that...

its an hypothetical electrochemical cell.

Hi there. I was attempting this problem but my answer is not agreeing with my friends. He got 1.4 *10^-7 Any help will be appreciated. Homework Statement Calculate the work done on a system if its voltage drops from 15 V to 5 V. edge length= 1 cm water permittivity e=78.54e Homework...

Integration by parts :( hi I have been trying this question for quite a while now and am unsure of what to do. Any help would be apprectiated. Integral x^13 cos(x^7) dx I know you have to use integration of parts. Here is what i have done so far: let U=x^3 dU =13x^12 dx dV=cos(x^7)...

ok thanks guys.

how do u get e^e^3x

hi there i am having trouble on the following question. 1. ln(x+y) = e^3x (1/x+y)(1+(dy/dx)) = (e^3x)(3) what can u substititue for y?

yes i see. thank-you for your help.

hi, i have a question. :rolleyes: e^x =0 is this possible, and for what values of x if so.?

:frown: thanks anyways bengali :smile: , hopefully someone else will be ablle to help me out.

yes initial velocity can be set to zero if the object stops of an instant, or if it starts from rest.

What are you trying to say here bengali babu? i don't understand how you say it seems kinda accurate and then you say that my graph just goes up wihtout changing direction. thank for ur help, but i don't get what ur trying to say. can you please clarify. thanks.

here is what i get for the graph. can someone please verify it. http://img77.imageshack.us/img77/7238/graph7zp.jpg

help please...graph Here is a question i am havin a bit of trouble with. http://img125.imageshack.us/img125/8824/cs2rr.jpg This is what i figured out: f'(1) must be a local max or min since hte derivativee is 0 the second line are the vertical and horz assympotes. there is a...

since the inflection point is x=0 b should be 0 if your work is correct. ur second derivative is right.