Khalil's research shows that as study time increases, overall grades in school also increase quite substantially. Which of the following correlation coefficients would best exemplify his findings?

ek = (m·v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) ·v2/2

ek = (200 + 250) ·2,32/2 = 450·5,29/2 = 1190,25 j

answer: if though all maps are biased we study them to tell we have to go and use them to tell the direction we have to go but if you don't want to use a compass to find the way to go then the only option is to use the standard maps made by the european's  

explanation: