Answer:
The smallest separation distance between the speakers is 0.71 m.
Explanation:
Given that,
Two speakers, one directly behind the other, are each generating a 240-Hz sound wave, f = 240 Hz
Let the speed of sound is 343 m/s in air. The speed of sound is given by the formula as :

To produce destructive interference at a listener standing in front of them,

So, the smallest separation distance between the speakers is 0.71 m. Hence, this is the required solution.
Answer:
The "butterfly Effect"
Explanation:
The "butterfly effect" will probably have big changes in the future.
<h3><u>Answer;</u></h3>
- Make up tissues
- The simplest level of organization of life
<h3><u>Explanation;</u></h3>
- <em><u>Cells are the smallest part of an organism that can carry out all of life functions. They are the basic functional unit of all living organisms.</u></em>
- According to cell theory all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
- <em><u>A group of cells make up tissues. Tissues are a group of cells that are specialized to carry out specific functions in plants and animal bodies. </u></em>
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Answer:
Distance between both the object will be 404.51 m
Explanation:
We have given charge on two objects 
Coulomb force between the two objects is given F = 5.5 N
We have to fond the distance between both the object so that force between them is 5.5 N
According to coulomb law force between two charge particle is 
So 

r = 404.51 m
So distance between both object will be 404.51 m