Hi Baoli, Thanks for the info I will pass it on Barrie In article <004a01be1a78$a4b86c20$7411220a@zw>, lianqii <lianqii@sy- public.ln.cninfo.net> writes >Hi Barrie, > >Copper can propagates both longitudinal waves and transverse waves. > In a solid,longitudinal waves travel at a speed represented by the >formula > v=(Y/p)^(1/2) >where p is the density of the solid and Y is called the elastic modulus > The density of the copper is about 8.9 gramms per mm^3 ,the elastic >modulus of copper ranges from 75 to 130 Gpa (many kinds of copper,brass,or >others).so the corespondance longitudinal speed ranges from 2900 m/s to 3800 >m/s. > As for the transverse waves,the speed is dependent on the shape. > Temperature is a fator to influnce the speed,higer the temperature,faster >the speed. > Hope it helps. > > Baoli Liu >Shenyang Conservatory of Music >China > >-----Original Message----- >发件人: Barrie Heaton <Piano@forte.airtime.co.uk> >收件人: pianotech@ptg.org <pianotech@ptg.org> >日期: 1998年11月28日 4:11 >主题: 20 Centigrade? > > >>Can you help this man >> >>Barrie, >> >>Hi there, could you tell me or find out for me what the velocity of >>sound is in copper at 20 Centigrade? Thanx >>Nicholas >> >> >> >> >> >>-- >> >>Barrie Heaton | Be Environmentally >Friendly >>URL: http://www.uk-piano.org/ | To Your Neighbour >>The UK Piano Page | >>pgp key on request | HAVE YOUR PIANO TUNED >> >> > > -- Barrie Heaton | Be Environmentally Friendly URL: http://www.uk-piano.org/ | To Your Neighbour The UK Piano Page | pgp key on request | HAVE YOUR PIANO TUNED
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