Recent content by idir93

Hi everyone, I have this question for you: In Instrumentation, when connecting the input of one circuit to the output of another circuit,(for instance, connecting the output of a sensor to the input of an amplifier circuit), a loading problem may arise, could you explain to this problem ? And...

Found it ! it's 0.5∏

1. Homework Statement Vector field is F=-y\hat{x} + x\hat{y} Compute the line integral along the path c(t)=( cos(t), sin(t) ) with 0≤t≤∏2. The attempt at a solution i started computing f.dl but how much is dl ? I took it dx\hat{x} +dy\hat{y} I'm not sure if using Cartesian coordinates is right ?

Thanls a lot, it was just a calculation error.

Hello guys i was trying to solve some problem of simple harmonic motion. as it is well explaind in the title I'm not getting the same result as my textbook manual solution. Problem: A block of unknown mass is attached to a spring with a spring constant of 6:50 N/m and undergoes simple...

Thanks again

It's okay now i totally got it thank you very much for your help :) please tell me which degree do you have ?

Thanks i did it with your big help, but i still don't understand this case when k1=k2 and x1=x2 because in my problem the two springs have the same k and since they are massless they'll be stretchend with the same x making a total of 2x in the displacement. Why in the first argument of the diff...

how can i get rid of x1 and x2 ?

How ?

that's the problem my friend :( it's the reverse of series resistors on a circuit. K (equivalent) = (k1k2)/(k1 + k2) But i don't know how to get to it. maybe by moving backward

yes the springs are massless, i got this answer from a textbook : the tension is uniform in the upper spring and has a magnitude of kx, hence the tension in the lower spring also has a magnitude of kx the displacement of M is 2x. the diff eq is : M2(dx²)/(dt) + kx = 0 Why 2 in the first...

Hello guys I'm desperately trying to understand the solution of this assignement . What would be the differential equation og this Simple Harmonic Motion when you have a mass m suspended to 2 springs in series ?

Hello guys I'm despesrately looking for a link to download a book named as Linear Algebra Problem solvers REA, whatever edition it is. Thank you in advance

i do not think that it's legal :) i mean that there is surely another method thank you anyway