If the accepted value of a wave is 121 m/s, who has the most accurate method of measuring the speed of a wave?

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Contains chemical energy. a. heat b. light c. natural gas