Doua corpuri foarte mici sunt incarcate cu sarcinile q 1 = 0,1µC si q 2 = 0,5µC. Cu ce forta se resping corpurile cand distanta dintre ele este
r = 2 cm ? Dar cand distanta este de 20 cm

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

Boiling water is an example of physical change. true or false

Which one of the following represents the reduced forms of the two major electron carriers? nadh and fadh2 nad+ and fadh2 nad+ and fad nadh and fad