Two people, each with a mass of 65.0 kg, are on the same carousel. One is standing 3.00 meters from the center, and the other is standing 7.00 meters from the center. If the closer person has an angular momentum of 2,340 kg m?, what is the angular momentum of the person standing at 7.00 meters? (Remember: both people have the same angular velocity.) A) 5,460 B) 5,920 C) 12,700 D) 41,400 Each year at a college, there is a tradition of having a hoop rolling competition. Alex rolls his 0.250 kg hoop down the course. If the hoop has a radius of 50.0 cm, what is the moment of inertia of Alex's rolling hoop? A) 0.0625 B) 0.125 C) 12.5 D) 625 A particular planet has a moment of inertia of 9.74 x 10^37 kg m? and a mass of 5.98 x 10^24 kg. Based on these values, what is the planet's radius? Hint: Because planets are the shape of a sphere, the moment of inertia is I = (2/5) mr?. A) 6.38 x 10^6 B) 2.55 x 10^6 C) 6.53 x 10^12 D) 4.07 x 10^13 Jessica stretches her arms out 0.8 m from the center of her body while holding a 2.0 kg mass in each hand. She then spins around on an ice rink at 1.2 m/s A) what is the combined angular momentum of the masses? B) if she pulls her arms in to 0.12 m, what is her new linear speed