What will the diameter of the bubble

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Q1. A bubble having a diameter of 1.0 cm is released from a depth of 5 m from the bottom of a swimming pool. What will the diameter of the bubble be while it reaches the surface? The temperature of the water is 20 0C at the top of the pool whereas it is 15 0C at the bottom. (Water density is 143 kg/m3). (Treat the air as an ideal gas)

Q2. A 72 person stands on a uniform ladder 4.5 long, that weighs 75. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force.

Reference no: EM139957

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