Recent content by kamranonline

Thanks a lot... failed to think from internal energy's perspective.

I have a general question about otto cycle. If we heat a gas with constant volume its temperature rise according to PV=mRT. However during Isentropic compression(delta Q and delta S is zero), the volume is becoming less and pressure is increasing but i don't know why the temperature should...

I have two questions. when a car or roller coaster travels in a loop. At the top of the loop the forces that acts on the car are all downwards i.e. W and normal , so the net force is acting downward. I can't figure our any other force acting upward, so what actually will keep the car sticked to...

Hey! just have a quick question about the field of engineering. I am in undergrad first yr engg rite now. I am not really sure about the field I am going to choose yet but was just wondering if there is difference between traditional engineering and specialization. For instance, Electrical...

Thanks a lot. I got it now ! :) A very useful rule!

yes it is.. sorry my bad. :P then we have to expand the integral and and simply write the inner function by replacing t with x rite? (i spend much time figuring out the integral, but in vain.. :P)

http://usera.ImageCave.com/kamranonline/369529f005b9d646328ba8de471139.gif Attempt to the solution. I took u=\sqrt{t} and from there i went upto : 2\intu^2Sin(u^{2})dx dunno wat to do next. Havn't been taught integration by parts yet.

I have a problem understanding the divergence of series.. There is a n-th term test that u first apply on the general term of the series and if its limit is not equal 0 then the series is divergent.. When i apply that test sometime i get it wrong and sometime not.. When can i apply this test? is...