A mass weights 50 gm is suspended on a spring. What is the extension of the spring if the value of force/Hook's constant is 19600 dyne/cm? (the acceleration
of gravity=980 cm/s^2).

Answerboth technicians (a) and (b);

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.