ill give brainliest plz answer  which of the following instruments did scientists use to observe cells and formulate the cell theory? magnifying glass microscope piece of glass eyeglass lens

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.

Carbon 14 is a naturally occurring stable

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.