The speed of sound through oxygen at 0°C is 316 meters per second. The speed of sound through solid copper is 5,010 meters per s
econd. Which of the following could be the speed of sound through liquid mercury? A. 52 meters per second B. 1,450 meters per second C. 6,130 meters per second D. 228 meters per second
A first-class lever: fulcrum is between input and output force; second-class lever: output force is between input force and fulcrum; third-class lever: input force is between fulcrum and output force
