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1. |
Find the surface tension in soap bubble of 40 mm diameter when the inside pressure is 2.5 N/m2 above atmospheric pressure. |
A. | 0.0064 N/m |
B. | 0.860 N/m |
C. | 1.265 N/m |
D. | 0.0125 N/m |
Answer» E. | |