(1)木块A受到的浮力大小;
(2)细线TB对合金球B的拉力大小;
(3)打开阀门K使水缓慢流出,当悬线TA断裂的一瞬间关闭阀门K,此时木块A排开水的体积为多少?
(4)若在悬线TA断裂的一瞬间关闭阀门K同时剪断细线TB,待木块A再次静止漂浮时,与悬线TA断裂的瞬间相比,容器底受到水的压强改变了多少?
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