A Very Personal Definition. Does being financially responsible mean that you have to scrimp and save? Maybe, but only if that is what it takes to stay out of debt. On the other hand, if you are the Sultan of Brunei, you may easily be able to afford a jet, a mega-yacht, a mansion in the South of France and a few palaces.
Light wave-A light wave is a special type of electromagnetic wave that has a frequency in the visible spectrum. Longitudinal-A longitudinal wave is a wave where the disturbance travels in the same direction as the wave. Sound waves are longitudinal. Mechanical Waves-A mechanical wave is a wave that must travel through some sort of matter called a medium. Mechanical waves cannot travel through a vacuum like outer space. Medium-The medium is the matter that a wave travels through.
Waves are a wiggle in space cause by a vibration or disturbance. They have the ability to carry energy from one location to another. There are two different types of waves; transverse and longitudinal. A transverse wave is when the wave is vibrating perpendicular to the direction the wave is traveling. A longitudinal wave, also called a compression wave, is a wave in which the vibration is in the same direction as that in which the wave is traveling. How frequently a wave or vibration occurs during a span of time, determines the waves frequency. Frequency is the number of waves per unit time.