Halle el valor del trabajo efectuado por una fuerza de 26 N, aplicado sobre un cuerpo que se dessplaza a 4m y su angulo de 120 grados

If the speed of a particle triples ,by what factor does its kinetic energy increase?

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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.