1. Sound insulation at construction sides.
2. Using silencers in automobiles and replacing old noisy machines with new quitter machines or using lubricants
Correct answer choice is :
B) Red, orange, yellow, green, blue, indigo, and violet
Explanation:
A spectral color is a color that is extracted in a natural human by a single wavelength of light in the apparent rainbow, or by a comparatively narrow band of wavelengths, also recognized as monochromatic light. The combination of colors provided when the light is separated by a prism. Spectrum an indexed order of the elements of an radiation or wave. Electromagnetic rainbow the complete wavelength spectrum of electromagnetic waves.
They will repel each other because they both have positive charges.
Answer:
The value is 
Explanation:
From the question we are told that
The diameter is 
The length of the wire is 
Generally the cross sectional area of the copper wire is mathematically represented as
=> 
=> 
Generally the resistance is mathematically represented as
Here 
is the resistivity of copper with the value 
=> 
=>
