In the construction of new countryside, in order to solve people's drinking water problem, the government and villagers have built many reservoirs. The reservoir on the second floor of Xiaoming's hous

In the construction of new countryside, in order to solve people's drinking water problem, the government and villagers have built many reservoirs. The reservoir on the second floor of Xiaoming's house is long and wide. Solution: pool volume: V= length× width× height =3m×2m× 1m=6m3,

The maximum storage capacity of the pool is m = ρ V =1.0×103kg/m3× 6m3 = 6×103kg = 6t.

Gravity of water: g = mg = 6×103kg×10n/kg = 6×104n;

The height of water lifting should be the height of the building plus the depth of the well, plus the height of the pool: h=2×3m+2m+ 1m=9m.

Work done by water pump: w = GH = 6×104n× 9m = 5.4×105j,

8min=480s，

Pump power: p = wt = 5.4×105j480s =1125w =1.125kw;

So the answer is: 6; 5.4× 105; 1. 125.