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.
The energy carried in a wave depends on the waveâs amplitude and its velocity. Waves can be put into two categories: those that spread, like water waves on a pond, sound waves, or electromagnetic waves; and those that are confined to a narrow region, like waves on a rope or electrical oscillations on a wire.