Respostas

2013-09-20T21:08:30-03:00
Vm = 3 cm/min
∆S = 30 cm
∆t = ?

Vm = ∆S/∆t
3 = 30/∆t
∆t = 30/3
∆t = 10 min


abraço!
4 3 4
2013-09-20T21:11:36-03:00
Vm=ΔS/Δt
3=30/
Δt
3
Δt = 30
Δt = 30/3
Δt = 10 min
2 3 2