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Q1. A capacitor consists of two square plates, 8.50 on a side, separated by a 2.00 air gap. How much energy will be stored in the capacitor if the mica dielectric is placed between the plates? Imagine the mica is 2.0 thick (and therefore fills the space between the plates).The charges on the plates are equal and opposite and of magnitude 240.

Q2. A person of mass 75 stands at the center of a rotating merry-go-round platform of radius 2.8 and moment of inertia 920. The platform rotates without friction with angular velocity 1.78. The person walks radially to the edge of the platform. Compute an angular velocity when the person reaches the edge.

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