NODE 734 — TERMINAL RELAY

{
  "type": "chime",
  "difficulty": 4,
  "n_cols": 8,
  "n_chars": 36,
  "cavities": [
    {
      "neck_area_m2": 7.636e-05,
      "neck_length_m": 0.027324,
      "volume_m3": 0.00023004,
      "resonant_freq_hz": 195.9908
    },
    {
      "neck_area_m2": 9.62e-06,
      "neck_length_m": 0.007531,
      "volume_m3": 0.00023616,
      "resonant_freq_hz": 130.778
    },
    {
      "neck_area_m2": 8.786e-05,
      "neck_length_m": 0.011724,
      "volume_m3": 0.0001943,
      "resonant_freq_hz": 349.2191
    },
    {
      "neck_area_m2": 7.885e-05,
      "neck_length_m": 0.029884,
      "volume_m3": 0.00012189,
      "resonant_freq_hz": 261.6219
    },
    {
      "neck_area_m2": 3.542e-05,
      "neck_length_m": 0.018762,
      "volume_m3": 6.921e-05,
      "resonant_freq_hz": 293.6817
    },
    {
      "neck_area_m2": 1.291e-05,
      "neck_length_m": 0.006906,
      "volume_m3": 7.691e-05,
      "resonant_freq_hz": 277.2267
    },
    {
      "neck_area_m2": 6.387e-05,
      "neck_length_m": 0.026513,
      "volume_m3": 0.00017667,
      "resonant_freq_hz": 207.6415
    },
    {
      "neck_area_m2": 3.35e-05,
      "neck_length_m": 0.021075,
      "volume_m3": 0.00023315,
      "resonant_freq_hz": 146.8242
    }
  ],
  "note_base_hz": 130.81,
  "note_base_name": "C3",
  "temp_c": 37.5,
  "speed_of_sound": 353.31,
  "hint": "T = 37.5\u00b0C. c = 353.3 m/s.",
  "answer_format": "single lowercase letter"
}