(1)容器中水的重力F=mg=1.5×10=15N
(2)水对容器的底面压力F=0.004×0.3×1000×10=12N.压强P=F/S=12/0.004=3000pa
(3)容器对桌面的压力F=1.5×10+5=20N.压强P=20/0.004=5000pa
(1)容器中水的重力F=mg=1.5×10=15N
(2)水对容器的底面压力F=0.004×0.3×1000×10=12N.压强P=F/S=12/0.004=3000pa
(3)容器对桌面的压力F=1.5×10+5=20N.压强P=20/0.004=5000pa