When the space shuttle blasts into orbit, a hot gas forms when hydrogen and oxygen join to make water. this the space shuttle to blast into orbit. the formation of this gas is an example of

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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.

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.