Atoy plane has a mass of 5 kg. you want to accelerate it at 4 m/s/ s. how much force do you need?

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.

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth

5. why should the electrons be placed separate from each other (why not together)?