14. A piano string under a tension F = 40 N vibrates at a fundamental (n = 1 frequency of 450.0 Hz. The tension is incre

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14 A Piano String Under A Tension F 40 N Vibrates At A Fundamental N 1 Frequency Of 450 0 Hz The Tension Is Incre 1 (17.46 KiB) Viewed 11 times

14. A piano string under a tension F = 40 N vibrates at a fundamental (n = 1 frequency of 450.0 Hz. The tension is increased to F, and the string vibrates in n = 3 mode with a frequency of frequency 2100 Hz. What is the value of F2? A) 110.0N B) 96.8 N C) 68.4 N D) 48.4 N B) 72.8 N 15. Consider two equal-volumne flasks of gas at the same temperature and pressure. One gas, oxygen, has a molecular mass of 32. The other gas, nitrogen, has a molecular mass of 28. What is the ratio of the number of oxygen molecules to the number of nitrogen molecules in these flasks? A) B) C) D) 33 E)