a particular string resonates in four loops at a frequency of 280 hz name at least three other frequencies at which it will resonate help please I’m stuck
2 Answers

When you say “in four loops”, I’m assuming that this means that is 4 halfwavelengths. That makes the fundamental mode resonance at 280/4 or 70Hz. The second harmonic would be 2*70 or 140Hz. The third harmonic would be 3*70 or 210Hz.

Four Loops