A figure skater rotating at 5. 00 rad/s with arms extended has a moment of inertia of 2. 25 kg∙m2. If the arms are pulled in so the moment of inertia decreases to 1. 80 kg∙m2, what is the final angular speed?.

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.