Arocket burns fuel at a rate of 249 kg/s and exhausts the gas at a relative speed of 2 km/s. find the thrust of the rocket. answer in units of mn.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

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.

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c