This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Damping coefficient circle plain.svg Natural frequency circle of dumping coefficient zeta generated from Image Unit circle svg Own Mintz Inkscape omeganleft zetapm jsqrt zeta right zeta cos phi Cybernetics
Page 2023 Free-images.com. All images are Public Domain