You all stop for a snack mid afternoon after biking allday, one of your friends has a chocolate bar while the other ones have protein bars. How will this affect their energy levels?

The speed of  sound:   sound travels  at different speeds depending on what it istraveling through. of the three mediums (gas, liquid, and solid)  sound waves travel the slowest through  gases, faster  through  liquids, and fastest  through  solids.