What is not an example of absorption? ( don't tell me what is absorption. i need an example that isn't absorption! you)

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig