Q. A 4x 11 swimming pool slopes linearly from a 1.20 depth at one end to a 3.80 depth at the other. What is the mass of water in the pool?
Q. (1) why is meniscus of water concave to the ear in capilary tube.
(2) Name the force acting at glass water interface and glass mercury interface and explain their actions.
(3) Describe why mercury spilled on a horizontal sheet of clean glass and run it