21. A simple case of dynamic equilibrium occurs in constant velocity motion across a surface with kinetic friction. 22. It attains the Eastern beauty in which the tough is overcome with the mild, and dynamic equilibrium . 23. Throughout history, the Earth's atmosphere and biogeochemical cycles have been in a dynamic equilibrium with planetary ecosystems. 24. A dynamic equilibrium exists for the binding. 25. Surely this is dynamic equilibrium in practice? 26. Nyquist stability criterion ) or dynamic equilibrium . 27. If a dynamic equilibrium is established between the two isomers it is also referred to as valence tautomerism. 28. Both strategies are based on developing a dynamic equilibrium amongst an active propagating radical and a dormant species. 29. To maintain dynamic equilibrium and effectively carry out certain functions, a system must detect and respond to perturbations. 30. The manager's role is to develop a viable organization, cope with change, and help participants establish a dynamic equilibrium .