What is the frequency of a wave that has a wavelength of 4 meters and a speed of 40 m/s?
a. 36 hz
b. 44 hz
c.10 hz
d.160 hz

Answer such tools are fail proof;

The answer is false

The  knowledge gap  as been recast more recently as a “digital divide”  gap. with the internet and social media many things can be done faster and better. so much faster and better that those that do not have access to them are literally left out of the game.