Sound is a longitudinal wave that carries energy. Sound needs a medium to propagate through (this means that sound cannot propagate in vacuum).
The medium usually determines the speed of the wave travelling through it.
As the sound waves travel in a medium, this medium begins to decrease, therefore, the energy of the sound also decreases.
Answer:
A separation technique to separate solids from a solution. Crystallization can be defined as the process through which the atoms/molecules of a substance arrange themselves in a well-defined three-dimensional lattice and consequently, minimize the overall energy of the system.
Explanation:
item D is independent because it doesnt affect its signal strenght at all but other three factors does.
Answer:
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