2. A conducting sphere with neutral charge is connected to the ground. A negatively charged rod is
moved near the sphere. While the rod is near the sphere, the ground is disconnected. The rod is
then moved away. What is the charge on the sphere?
(10 Points)
A)Positive
B)Neutral
C)Negative

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?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0