ariannaaustin0403 ariannaaustin0403

28-04-2021
Physics

contestada

What is a wave's speed if it has a wavelength of 3.2x10^-7 m and a period of 2.8x10^-12s

Respuesta :

keijosalonen keijosalonen

28-04-2021

Answer: 1.1·10^5 m/s

Explanation: speed = wavelength · frequency v = λf and

frequency f = 1/T , in which T = period

Speed v= λ/T = 3.2·10^-7 m /2.8·10^-12 s = 114285,7 m/s

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