5. in the process of electrolysis, current can flow through a liquid because a. hydrogen is electrically neutralized in the solution. b. negative ions are attracted to the anode. c. water molecules become negatively charged. d. cations of the electrolyte accumulate at the positive electrodes. student aincorrect reference: section 4.4

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline