Saturday, September 25, 2010

Physic 130-work and energy equation

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W=FS cos ø
PE=mgh
KE=(1/2)mv^2
Wnc=(KEi + PEi) -(KEf + PEf)
Wnf=MEf+ MEi

for spring:
PE=(1/2)kx^2
KE=kx cos ø
at

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