formules ondes Flashcards

1
Q

la pulsation ω et son unité

A

ω = 2πf

ω en rad/s

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2
Q

longueur d’onde λ et son unité

A

λ=cT

λ en m

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3
Q

nombre d’onde ϕ et son unité

A

ϕ=1/λ

ϕ en m-1

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4
Q

le vecteur d’onde k et son unité

A

k = 2 π / λ

k en m-1

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5
Q

la fréquence f en avec λ et son unité

A

f = c/λ

f en Hz ou s-1

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6
Q

la période T en fonction de λ et son unité

A

T = λ /c

T en s

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7
Q

la vitesse v en fonction de n

A

v = c/n

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8
Q

la vitesse v en fonction de ω et de k

A

v = ω/k

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9
Q

la vitesse v en fonction de μ et de F

A

v = racine (F/μ)

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10
Q

la masse linéique μ en fonction de L et de m

A

μ = m/L

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11
Q

la masse linéique μ en fonction de ρ et de D

A

μ = (ρ π D^2) / 4

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12
Q

la masse linéique μ en fonction de ρ et de S

A

μ = ρS

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13
Q

surface S

A

S = π(D/2)^2

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