Solve the below problem:
Q: A sheet of rubber is stretched out over a ring of radius 0.25 m. I pour liquid water at 20oC on it so the rubber forms a half sphere (cup). Neglect the rubber mass and find the surface tension near the ring? You must solve the problem in a step by step. You should include all the units which are needed to complete the given problem.Your calculation and steps should be clear and understandable.