3) Suppose the frequency of a note on an organ is 42 Hz. What is the shortest organ pipe with both ends open that will r

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3 Suppose The Frequency Of A Note On An Organ Is 42 Hz What Is The Shortest Organ Pipe With Both Ends Open That Will R 1 (40.24 KiB) Viewed 13 times

3) Suppose the frequency of a note on an organ is 42 Hz. What is the shortest organ pipe with both ends open that will resonate at this frequency? The velocity of sound in air is 340. m/s. What would be the lowest resonating frequency of the same organ pipe if we close one end and leave the other end open? 4) A gas expands when 693 J of energy is added to it by heat. The expanding gas does 493 J of work on its surroundings. a) What is the overall change in the internal energy of the gas? b) If the work done by the gas is 140. J, how much energy must have been added as heat in order for the change in internal energy at the end of the process to equal the initial change in internal energy? 5) Gas in a container is at a pressure of 3.00 atm and a volume of 0.054 m³. What is the work done on the gas if it expands at constant pressure to three times its initial volume?