a789.py

Created by anaali
Created on January 15, 2023
672 Bytes
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'''
7
to:s, T:s; f:hz; lambda:m; AB:m
v:m.s-1
to=AB/v
v=lambda/T=lambda*f
1 m/s = 3,6km/h
v son/air=340m/S
propagation deformation ss deplacement
matier ds milieux materiel, 
caractéristique onde mecanique 
progressive (propagation vague 
sans eau avec)

8
interaction gravitationelle
FA/B= G* (ma*mb)/d2 (uA/B)
interaction electrostatique
FA/B= k* (|qa|*|qb|)/d2 (uA/B)
milli,micro,nano,pico

9 
methan,ethan,propan,butan,
pentan,hexan, heptan, octan
-OH: alcool (ol), met chiffre
-C-H : aldéhyde (al),met pas
| |
 O
  
C-C-C : cétone (on),met chiffre
 | |
  O
  
 O
| |
-C-OH : acide carboxylique
       (oique), met pas chiffre'''