Particles of mass 2m and m are fixed at the extreme of a light string of lenght l. find the centre of mass and the moment of inertia of the system of particles from the lighter particle.

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship