constantes fondamentales Flashcards

1
Q

masse volumique de l’eau à 4°c

A

1000 kg/m cube

1000 g/L

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2
Q

célérité de la lumière

A

3,00 x 10 ^ 8 m/s

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3
Q

constante de gravitation :

A

6,67 x 10 ^ -11 USI ((N m2 kg−2))

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4
Q

charge élémentaire :

A

e = 1,66 x 10 ^ -19 C

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5
Q

pesanteur à la surface terrestre :

A

9,81 N/kg

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6
Q

vitesse du son dans l’air sec à environ 15°C

A

340 m/s

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7
Q

fréquences audibles :

A

20 Hz (graves) à 20 000 Hz (aigus)

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8
Q

longueurs d’onde (dans le vide) visibles

A

400 nm (violet) à 800 nm (rouge)

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9
Q

constante de Faraday

A

96 500 C

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10
Q

Constante d’Avogadro Na :

A

6,022 x 10^23 atomes dans une mole

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