Use the drop-down menus to identify the part of the ear that performs each function. Changes sounds to signals that the brain can understand: (Inner ear, middle ear, or outer ear)

Collects sound: (Inner ear, middle ear, or outer ear)

Passes sounds through vibrations: (Inner ear, middle ear, or outer ear)

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present