skater spins over a point at a speed of 3.0 rotations per second then the momentum of inertia is 0.60 kg. M2, what is its angular momentum?

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.