Procedures should be written in a way that someone could pick up the experiment and complete on their own. True or False?

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?

If element x has 99 protons how many electrons does it have

Give one example to show that when substances are mixed, it may result in a chemical or a physical change depending on the conditions.