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Q1. An organ pipe is 119 cm long. What is the third audible harmonic if the pipe is closed at one end? The speed of sound in air is 345 m/s. in Hz

Q2. A bag of cement weighs 325 N and hangs from three cables. Two of the cables make angles of 1 = 60o and 2 = 25o with the horizontal. If the system is in equilibrium, find the tensions T1, T2, and T3.

Q3. A piece of unpainted wood barely floats in a container partly filled with water. If container is sealed and then pressurized above atmospheric pressure, does the wood rise, sink, or remain at the similar level?

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Category:- Physics
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