The wave length of violet light rounded to the nearest nanometer is a __ nm

Wavelength= speed / frequency 

so3× 10^8 / 7.26×10^14
= .413× 10^(-6)

in scientific notation= 4.13×10^(-7) 

in nanometer = 413 nm

Global warming was a major concern some people do not care global warming is fake it is not real the percentage of it happening  is slight 

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.