For a science experiment you need to electroplate zinc onto both sides of a very thin, 1.00cm × 1.00cm copper sheet. You want the zinc thickness to be 140nm , and you know that the charge carriers in the ionic solution are divalent (charge 2e) zinc ions. The density of zinc is 7140kg/m3 .If the electroplating apparatus operates at 1.40mA , how long will it take the zinc to reach the desired thickness?t ?s
2 wheel drive usually indicates rear wheels pulling.
okthis is stupid two wheed drive means that false advertising is involved pick up one wheel ( that ias a drive wheel and put it inti gear that wheel spins and the car stays still ok in my mind that means 1 wheel drive) 2 wheel drive should meanthat if u pick one wheel up the car should move pos atraction car will move front or rear he he he
in a two wheel drive the back wheels are the one that move and a front wheel drive the front wheels move.
(7140 kg/m?)(2.00 cm?)((1e-2)? m? / cm?)(140 nm)(1e-9 m / nm)(1000 g / kg) 1.9992e-4 g (1.9992e-4 g)(mol Zn / 65.382 g)(2 mol e- / mol Zn)(96485 C / mol e-) 0.5900 C (0.5900 C)(s / 1.40 mC)(mC / 1e-3 C) 421 s
