25 points asap i will give brainliest to the person with a right answer what is the period of a wave if the wavelength is 100 m and the speed is 200 m/s?

0.5 s

100 s

200,00 s

2s

Wavelength = pie*69+69 with ur mom

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.