Categories Every Day Science The speed of sound in dry air at 20 is about Post author By esimpk Post date December 14, 2021 No Comments on The speed of sound in dry air at 20 is about A: 130 meters per second B: 330 meters per second C: 430 meters per second D: None of these ← When sound is reflected from floor, ceiling or a wall, it mixes with the original sound and changess its complextion, it is called → The speed of light in vacuum is Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.