HELPP physics final will give brainliest

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?