The Eliezer Kyamuyeye Law: Definition of the Unit KYAMUYEYE (Ky) - t_echo = 2d/c

The Eliezer Kyamuyeye Law: t_echo = 2d/cAuthor: Eliezer KyamuyeyeORCID: 0009-0007-0939-0999Lubumbashi, DRC - 2026LAW:t_echo = 2d / ct_echo = echo time, d = distance (meters), c = speed of sound 343 m/s or lightUNIT DEFINITION:Name: KYAMUYEYESymbol: KyDefinition: 1 Kyamuyeye (1 Ky) = 1 second of echo timeFormula: t_echo [Ky] = 2d / cSI Equivalence: 1 Ky = 1 sDimensional analysis: [T] = [L]/[L/T] = seconds = KyExample: d=343m, c=343m/s => t_echo = 2*343/343 = 2 s = 2 KyThis publication establishes the official definition of the KYAMUYEYE (Ky) as the unit of echo time, in honor of author Eliezer Kyamuyeye.Keywords: Kyamuyeye, Ky, echo law, acoustics, Eliezer Kyamuyeye LawLicense: CC-BY 4.0