Hi All. I need to resolve a formula for wave propagation for a civil engineering problem and its been many years since my maths A level. The formula is simply:-
v=2πf.s where v is velocity at mm/s, f is frequency in Hz and s is amplitude in mm.
Now I am expecting v to equal something in the region of 10 to 15 mm/s.
The value for 2 is obviously 2. That for pi I am taking as 3.142. I have a frequency figure of 59 Hz and an amplitude of 0.4mm. My problem is that I cannot remember the significance of the full stop between the f and the s.
Simply multiplying all 4 components together is obviously not correct, as the product is something like 10 times too great. Any 16 year old maths students out there? Regards, Carstairs
v=2πf.s where v is velocity at mm/s, f is frequency in Hz and s is amplitude in mm.
Now I am expecting v to equal something in the region of 10 to 15 mm/s.
The value for 2 is obviously 2. That for pi I am taking as 3.142. I have a frequency figure of 59 Hz and an amplitude of 0.4mm. My problem is that I cannot remember the significance of the full stop between the f and the s.
Simply multiplying all 4 components together is obviously not correct, as the product is something like 10 times too great. Any 16 year old maths students out there? Regards, Carstairs























