Practicing Self-Care. 1  1. Take care of yourself. There are many small steps to this one action. 2  2. Put care into your appearance. You don't have to look like Brad Pitt to start building your self confidence. 3  3. Exercise regularly. Part of taking care of yourself is getting exercise.  4. Sleep well.
Stationary Waves. Stationary or standing waves are formed in a medium when two waves having equal amplitude and frequency moving in opposite directions along the same line, interfere in a confined space. Generally, such waves are formed by the superposition of a forward wave and the reflected wave. Both longitudinal and transverse types of waves can form a stationary wave. When reflection occurs at a free end, there is no reversal of phase. i.e., a crest returns as a crest and a trough as a trough.
A point at an antinode has the maximum amplitude while a point at a node has an amplitude of 0. Points in two âneighbouring loopsâ in a stationary wave are in antiphase with each other. The distance between two successive nodes (or two successive antinodes) in a stationary wave is equal to half of the wavelength. Waves produced by guitar strings are stationary waves.