Mechanical Waves are waves which propagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.
If the temperature of the air is said to be at absolute zero, one might conclude that a. the molecules contain a minimum amount of energy. b. the motion of the molecules is at a maximum. c. the molecules are occupying a large volume. the molecules contain a minimum amount of energy.
If the air is unsaturated, this rate, called the dry adiabatic rate, is 10Â°C per 1000m (5.5Â°F per 1000ft), i.e., a parcel of unsaturated air cools by 100C every 1000 meters if it doesn't exchange heat with its surroundings. As air rises and cools its relative humidity increases.n this situation, an air parcel will be warmer and less dense than the surrounding air and will rise due to buoyant forces. Clouds with extensive vertical development are indicative of absolute instability. Conditional instability is a state of instability that depends upon whether or not the rising air is saturated.