A classmate converts 68 km to meters and gets 0.068 m as the answer. explain why this answer is incorrect, and identify the likely source of error.

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

Compare and contrast solutions and suspensions

How is the atomic number of a nucleus changed by alpha decay