- Four point charges are at the corners of a square of side a as shown in the figure. (a) Determine the magnitude
and direction of the electric field at the location of
charge q. (b) What is the resultant force on q?

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?

What properties of a moving object are used in determining the object's energy of motion

Why are graphs useful when interpreting data