A charge of 3.7 ×10⁴coulomb flows through an electric heater, and the amount of electrical energy converted into thermal energy is 9.00 Megajoules: a) calculate the PD across the ends of the heater.​

Answer///air resistance,drag;

Answer form flower;

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.