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Mechanics or Fluid Mechanics

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Hi,I try to solve this problem with this formula and I can not get the right answer ! F2 = F1 ( R2/R1) A dentist's chair with a
1. 3 answers
2. asked by maysam
3. 854 views
A fully loaded 737 aircraft takes off at 250 {\rm km/h}.
1. 1 answer
2. asked by Anonymous
3. 512 views