zakfab

Is this question all way over your heads or something?? Surely you come acroos this all the time when you mess up a calculation slightly.

Is it possible to do the inverse Laplace Transform of a constant? I ask because I have a differential equation which I transformed, solved and now need to find the invers of. Unfortunatly my answer has a constant, and I don't know what to do about it!!! Thanks!

It has a lot to do with the colouring in the drinks, and what other chemicals are in it to make it taste better. If you drink vodka straight, or with water, you shouldn't get a hangover!

Current is the flow of charge. Just one electron moving throughout a conductor is a flow of charge, so it would be classed as 'electricity'.

The guy wants to know how to check his sum. He downloaded his program, along with his checksum. Now how does he compare the checksum he downloaded with the program?

Science of mind is what brings that which cannot be named, because structure hinders the studier from comprehending the mind in it's true state, as opposed to a bag of satsumas.5 kilos and assorted nuts and bolts which only hinder Anna Kournikova from showing her true fiendish, but perfectly shaped

I got help elsewhere when the forum went down, thanks anyway!

I wish I knew! The lab was about characteristics of DC motors, comparing torque with armature current/voltage (don't ask me what armature is!) and speed in rads per second. I have to derive the equation E = K(phi)(omega) using Faraday's Law, which i believe is E = -N(d(phi)/dt) All the other stuff I wrote was trying to explain what I meant in the equations because I don't know how to do symbols on here.

I have just done a bit about DC motors in a lab, and now i have to derive the equation: E = K(fi)(omega) E = back emf K = Z/(2(pi) where z = number of conductors carrying current, I (fi) = magnetic flux (omega) = angular velocity of motor (rad/s) So I have to derive that from Faraday's Law, which I assume means: E = -N(d(fi)/dt) N = number of turns of a coil t = time? I don't have a clue where to start! Someone pleeese help ASAP!

I read catcher in the rye a few years abo when I was about 16, I can't imagine how dull it would be to actually STUDY it. Whenever we studied a book in school it totally ruined it! I'm reading 'Persuader' - Lee Child and 'In search of Schrodingers cat' - john Gribbin

In Southampton they set off fireworks every night from about October 1st until New Year. Kids eh? I wouldn't be suprised if one kid a week ends up needing hospital treatment for firework related injuried just here!

Haha, can't wait for faf's next reply

Kedas: Could you elaborate on how you got the r cos (theta) parts, and how you know to multiply by F/E? Thanks

Does anyone know any software which will create a graph of stress/strain from a table of stress and strain values? Whenever I try with Excel it puts stress as one axis, then plots strain as a line on the graph. Can someone either tell me how to use excel or give me another good graphing program? Thanks.

We need to know more about your plan to see if it will work or not. But if you tell us it surely won't work because we will be able to counter it!