How is the wave speed calculated?

Drag each item into the proper state of matter category.

(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

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?