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Mesure d'une distance d'une onde sonore


loupiotte06

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  • E-Bahut

d=v*t où d est la distance parcourue à la vitesse v pendant le temps t.

1-----------------

post-24224-0-61028600-1351170456_thumb.j

d=4.5*200*10^(-6)*340=0.306 m

2-----------------

post-24224-0-17192600-1351170467_thumb.j

v=d/t=1.3/(4.2*2*10^(-3))=154.76 m/s

non car dans l'air la vitesse du son est de 340 m/s

3-----------------

post-24224-0-80410200-1351170473_thumb.j

t=3.65*10^-3=3.65 ms

d=1.20/2=0.6 m

4-----------------

post-24224-0-40423200-1351170478_thumb.j

t=2.9*0.2 ms=5.8 ms

d=340*5.8*10^(-3)= 1.97 m

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

post-24224-0-61028600-1351170456_thumb.j

post-24224-0-17192600-1351170467_thumb.j

post-24224-0-80410200-1351170473_thumb.j

post-24224-0-40423200-1351170478_thumb.j

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