Ultrasound absorption is directly proportional to:

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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.

Match each scenario to the form of energy it represents