I'm studying to be a year 7-9 (age 12-15) science and math teacher.

ergo_ergo
How did you find PF?
Googling for w = (k/m)^0,5
(yeah symbols, I know)
Some message here
 
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I am retired with a scientific background in Mathematics and Physics though I quit Academia after graduation. Recently, my interest has revived and I have started to review what I knew before and learn new stuff. My interests are in Physics and Mathematical Physics. I hope I can find answers to some of my questions here and perhaps in the future, I can also answers some questions. How have I arrived here? During the past two months, I have been doing some online research to find the best...