Лаг1989 задача №7.37
Find the velocity V of propagation of an elastic wave in the air, if the wavelength is 0.17 m, and the oscillation frequency is 2 kHz.
Thank you for your purchase. If you have any questions, please contact us by e-mail (see. "Seller Information")
Оплата и выдача товара осуществляются через партнёрскую платформу.