![Physics Reference: A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end. Physics Reference: A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end.](https://1.bp.blogspot.com/-sQ67hJG5lKA/XdwWnsUim1I/AAAAAAAAKoU/vLPuFGYTQo41_Gcms-ZuTRAOnuV2tNZ4wCLcBGAsYHQ/s1600/nov2015p11q19-u-tube-pressure-piston.png)
Physics Reference: A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end.
![Water and then oil (which don't mix) are poured into a U-shaped tube, open at both ends. They come to equilibrium as shown in the figure (Figure 1) . Assume H = Water and then oil (which don't mix) are poured into a U-shaped tube, open at both ends. They come to equilibrium as shown in the figure (Figure 1) . Assume H =](https://homework.study.com/cimages/multimages/16/mud6910088607346114250.png)
Water and then oil (which don't mix) are poured into a U-shaped tube, open at both ends. They come to equilibrium as shown in the figure (Figure 1) . Assume H =
![Mercury is poured into a U - tube as shown in figure. The left arm of the tube has cross - sectional area A1 of 10.0 cm^2 , and the right arm Mercury is poured into a U - tube as shown in figure. The left arm of the tube has cross - sectional area A1 of 10.0 cm^2 , and the right arm](https://haygot.s3.amazonaws.com/questions/1866967_00a0f1c6a6a0416c9bb10958853be5a6.png)