Agranola bar wrapper claims that it has protein. you conduct hydrolysis of the granola bar with pepsin enzyme to digest protein and amylase enzyme to digest starch. after hydrolysis, you detect sugars but no amino acids. did the granola bar contain proteins as claimed?

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?