Is the stomach just below the waist?

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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?