Bonjour,
Ex. 2 :
700 dA = 70 A = 70 000 mA
3,4 L = 340 cL = 0,034 hL
850 V = 0,85 kV = 85 daV
0,32 t = 320 kg = 32 000 dg
Ex. 3 :
Pythagore : TC² = TO² + OC² = 64² + 48² = 6 400
donc TC = √6400 = 80 (mm)
Ex. 4 :
2,415 h = 2 h + (0,415 × 60) mn
= 2 h + 24,9 mn
= 2 h + 24 mn + (0,9 × 60) s
= 2 h 24 mn 54 s
0,875 h = (0,875 × 60) mn
= 52,5 mn
= 52 mn + (0,5 × 60) s
= 52 mn 30 s
3 h 8 mn 24 s = (3 × 3600 + 8 × 60 + 24) s
= 11 304 s
= (11 304 ÷ 3 600) h
= 3,14 h
25 mn 12 s = (25 × 60 + 12) s
= 1 512 s
= (1 512 ÷ 3 600) h
= 0,42 h
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Bonjour,
Ex. 2 :
700 dA = 70 A = 70 000 mA
3,4 L = 340 cL = 0,034 hL
850 V = 0,85 kV = 85 daV
0,32 t = 320 kg = 32 000 dg
Ex. 3 :
Pythagore : TC² = TO² + OC² = 64² + 48² = 6 400
donc TC = √6400 = 80 (mm)
Ex. 4 :
2,415 h = 2 h + (0,415 × 60) mn
= 2 h + 24,9 mn
= 2 h + 24 mn + (0,9 × 60) s
= 2 h 24 mn 54 s
0,875 h = (0,875 × 60) mn
= 52,5 mn
= 52 mn + (0,5 × 60) s
= 52 mn 30 s
3 h 8 mn 24 s = (3 × 3600 + 8 × 60 + 24) s
= 11 304 s
= (11 304 ÷ 3 600) h
= 3,14 h
25 mn 12 s = (25 × 60 + 12) s
= 1 512 s
= (1 512 ÷ 3 600) h
= 0,42 h