A force of 50 N is applied to a screwdriver to pry the lid off a can of paint. The screwdriver applies 85 N of force to the lid What is the mechanical advantage of the screwdriver?

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.