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Exercices p113 bréal activité n°2
Recopier et compléter :
90 km/h... m/s
120 km/h = ... m/min
10m/s = km/h
...
32 kWh... Wmin
150 Wh ... kWmin
135 Wmin ... kWh
=
30 kg/m³
2 500 cg/cm³
15 t/km³ = ... . kg/m³
=
g/dm³
=
·g/m³


Exercices P113 Bréal Activité N2 Recopier Et Compléter 90 Kmh Ms 120 Kmh Mmin 10ms Kmh 32 KWh Wmin 150 Wh KWmin 135 Wmin KWh 30 Kgm 2 500 Cgcm 15 Tkm Kgm Gdm Gm class=

Répondre :

bonjour

90 km/h = 90 000 : 3 600 = 25 m /s

120 km /h = 120 000 : 60 = 2 000 m / min

10 m / s = 0.010 x 3 600 = 36 km / h

32 kWh = 30 000 : 60 = 533.33 W / min

150 W h = 0.15  : 60 = 0.0025 kW/ min

135 W min = 0.135 x 60 = 8.1  kW /h

30 kg / m ³ = 30 000 g / m ³ = 30 000 000 g / dm ³

2 500 cg / cm ³ =  25 g / cm³ = 0.000025 g / m ³

15 t / km ³ = 15 000 kg / m ³