Last night my family ordered pizza for dinner. when i finished i threw the 300g box across the floor at 2m/s. the floor has 0.3mu. how far did the box go?

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.