A 25kg rock falls for 1.7 seconds. how many meters tall was the building

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

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.