With what chila are two books, each weighing 300g, at a distance of 2m from each other attracted to each other?

Problem data: m (weight of each of the two taken books) = 300 g (in SI m = 0.3 kg); r (distance between taken books) = 2 m.

Reference values: G (gravitational constant) = 6.674 * 10 ^ -11 m3 / (s2 * kg).

The force with which two taken books are attracted is determined by the formula: F = G * m ^ 2 / r ^ 2.

Let’s make a calculation: F = 6.674 * 10 ^ -11 * 0.3 ^ 2/2 ^ 2 = 0.15 * 10 ^ -11 H = 1.5 pN.

Answer: Two taken books will be attracted with a force of 1.5 pN.