While playing a scavenger hunt game, Anthony walks 48.0 miles to the South and then walks 12.0 miles to the west. What distance did Anthony travel?

How do you tell if someone actually cares about you? and just say they do?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.