One end of a glass capillary tube with a radius r = 0.05 cm is immersed into water to a depth of h = 2 cm. What pressure is required to blow an air bubble out of the lower end of the tube? (T = 7 × 10–2 N/m and ρ = 103 kg/m3) Options: 
480 N/m2 680 N/m2 120 N/m2 820 N/m2
pls solve
One end of a glass capillary tube with a radius r = 0.05 cm is immersed into water to a depth of h = 2 cm. What pressure is required to blow an air bubble out of the lower end of the tube? (T = 7 × 10–2 N/m and ρ = 103 kg/m3)
| | 480 N/m2 |
| 680 N/m2 | |
| 120 N/m2 | |
| 820 N/m2 pls solve |
