(1)“天鲲号”以功率P1=6 600 kW进行绞吸,同时以功率P2 = 13 400 kW向远处输送岩石泥沙,工作时间 t=10 min,共做功多少焦?
(2)“天鲲号”绞刀的工作原理与家用破壁机相似。某破壁机的额定电压U = 220V,额定电流I=10 A,“天鲲号”绞刀以功率P1=6 600 kW工作,相当于多少台这种破壁机正常工作消耗的总功率?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2