Question

to the bottom ing there is the figure ted on the son is 3.30 35. The piston shown weighs 45 N. In its initial position, the piston is restrained from moving to the bo of the cylinder by means of the metal stop. Assuming the neither friction nor leakage between piston and cylinder. what volume of oil (S = 0.85) would have to be added to th 2.5 cm tube to cause the piston to rise 2.5 cm from its initial -only a 3.34 of th elev atm 3.3 the tha position? 2.5 cm (ID) tube ass 3.3 rat 15 cm Piston Oil (S = 0.85) 10 cm 10 cm Stop 10 cm (ID) cylinder PROBLEM 3.30 3.31 Consider an air bubble rising from the boken of a lake. Neglecting surface tension, determine approximately what the ratio of the density of the air in the bubhle willi 10 m to it

fluid mechanics! heelp

Answer 1

12e5aud piston given p=450 Sa=0.85 clice of cylinders ,10m isau Iben A = T (Đ•)” I Olu LA V ID 10com A = 7.854x10 m2 into cylinder at To sw're the water level 2.5cm C01025m) in Both cylinder and distribution cstatic) Apply vertical Pressure Tube! P + (10 +01025) 0.85+ fg. = (n +0.1) 0.85 x f g 01/25 z + les 10:85* 1000x9.81 = (MOD) 085X1000X918) 7,854 X10 3 5729.5657 1042:31257 833815 Chto.1. L 6771,8777_ (ht01) 83 38.5 0,81212 lohto Th=071212m or 71.212.com/ Total vot added s 54 (1942:5+ (2.9°471212 = ( 2.1*10* + 238212121 2545.91 cm3 or 0.54591&t Dow