A parachuter, falling with a constant speed, drops 540m in 14.0s determine all unknowns. average velocity- ?
change in y- ?
change in t- ?

It's have to be 12 or idk

The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips.