If you have a question to which you would like an answer, leave us your email address. That way, we can contact you and find a solution together. Thank you for your cooperation!
Thank you, your feedback has reached us. We are dealing with it as soon as possible
the speed at which sound travels in a given medium under specified conditions, kiirus, millega heli konkreetsetes tingimustes kindlaksmääratud keskkonnas levib