Labor rates must take into account both the base labor paid to teh mechanic plus the following factors: 1  Mechanics overhead costs - hand tools he usually has to provide. 2  Shop overhead including many consumables, lights, compressors, ramps, lifts, large equipment like alignment and diagnosis tools, cleaning facilities, bathrooms and water.
A wave is a way in which energy travels from one place to another. There are many kinds of waves, such as water waves, sound waves, light waves, radio waves, microwaves and earthquake waves. All waves have some things in common.
Waves move. The particles in the wave only vibrate. Particles in a wave are moving a distance against a force. They are having work done on them and they can do work. A transverse wave is a wave where the particle moves perpendicular to the medium. A longitudinal wave is where the particle moves parallel to the medium.