Complementary sound is not a term commonly used in the context of sound waves. However, if you are referring to the speed of sound in different mediums, the speed of sound generally depends on the properties of the medium through which it travels.
In general, sound travels fastest in solids, followed by liquids, and then gases. This is because the particles in solids are closely packed, allowing for faster transmission of sound waves through the medium. Liquids also have particles that are closer together compared to gases, which enables sound waves to propagate faster in liquids than in gases.
The speed of sound is determined by factors such as the density, elasticity, and compressibility of the medium. For example, in air at sea level and at a temperature of around 20 degrees Celsius (68 degrees Fahrenheit), sound travels at approximately 343 meters per second (or about 1,125 feet per second).
However, it's important to note that the speed of sound can vary depending on the specific properties of the medium, such as temperature and humidity. Additionally, there may be exceptions or variations in specific situations or mediums, so it's always advisable to consider the specific context or scenario when discussing the speed of sound.