If anyone could help me out with these problems, it would be greatly appreciated.(adsbygoogle = window.adsbygoogle || []).push({});

If one were to strike a drumhead simultaneously at two symmetrically located points, which modes will be strong and which would be absent from the vibration recipe?

If the tension applied to a string is doubled, its fundamental frequency is increased by half an octave because??? Show how many semitones this raises the pitch.

For a midrange string on a piano, look inside and estimate the effective length of string contacted by the hammer (the indentations in the felt are a good clue.) Express this as a fraction of the total length of the string. Use this to estimate the harmonic number (and its frequency) above which it would be a poor approximation to pretend that the hammer makes a simple point contact.

Jonathan

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Help With Musical Acoustics

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**