Will the diffusion treatment take longer or shorter at 500oC? Why? b. The diffusion coefficients for copper in aluminum at 500oC and 600oC are 4.8 × 10-14 and 5.3 × 10-13 m2 /s, respectively. Determine the approximate time at 500oC that will produce the same diffusion result

what do the notation's look like?

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.