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M3P2
Courses
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b0a86f77
Commit
b0a86f77
authored
Feb 01, 2025
by
Claude Meny
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Update cheatsheet.fr.md
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@@ -46,10 +46,10 @@ lessons:
---------------------------
### **Les ondes harmoniques**<br> *et la description de leur propagation*.
### **Les ondes
progressive
harmoniques**<br> *et la description de leur propagation*.
#### Qu'est-ce qu'une onde harmonique ?
#### Qu'est-ce qu'une onde
progressive
harmonique ?
!!!!!
*Terminologie :*
!!!!!
...
...
@@ -82,7 +82,7 @@ donné de l'espace, l'**onde** est alors représentée alors par une simple **fo
figure à faire
<br>
Choisis par exemple la fonction cosinus.
L'
**écriture générale**
d'une onde
sinusoïdal
e est :
L'
**écriture générale**
d'une onde
progressive harmoniqu
e est :
<br>
**$`\boldsymbol{\mathbf{\large{ U(t) = A\cdot cos\,(\,\omega t + \varphi_0)}}}\quad`$**
<br>
...
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@@ -171,7 +171,11 @@ Dans un **milieu homogène et isotrope, trois formes simples d'onde** se propage
*
**$`\quad +`$**
si l'onde se propage
*vers les $`x`$ décroissants*
##### *L'onde p
lan
e (2D ou 3D)*
##### *L'onde p
rogressiv
e (2D ou 3D)*

##### *L'onde plane (2D ou 3D)*
##### *L'onde sphérique (2D ou 3D)*
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