Answer:
F(Mars) = 2 G m M / (4 R)^2 force of Sun on Mars
F(Merc) = G m M / R^2 force of force of Sun on Mercury
R = distance of Sun from Mercury, m = mass of Mercury
F(Merc) / F(Mars) = 4^2 / 2 = 8
J.J. Thompson is the scientist who recieved credit for discovering them.
Just divide the two numbers with each other.
I mean 13/1.4=9.2857...
Feet and inches or millimeters or centimeters or meters or miles or kilometers
Each station can detect how far away the epicenter was. So each station basically has a circle made of possible epicenters. When you have three, you narrow it down to one, final point.