Existing rocks can become sedimentary rocks when they are subjected to which conditions?
a.) erosion, deposition, compaction
b.) heat, erosion, pressure
c.) heat, pressure, compaction
d.) erosion, pressure, heat

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.

What equation is used to calculate the weight of an object on a plant ?

Acar traveling at 21 m/s starts to decelerate steadily. it comes to a complete stop in 13 seconds. what is its acceleration?