Preserved fossil<span> (like a fossil in amber, ice or tar.</span>
I think is a high-pressure system because it is only in one particular area.
Answer:
A downward force of magnitude 5 N is exerted on the book by the force of ... Do the downward force in Part A (gravity) and the upward force in Part B ...
Use the formula 1/2*I*w^2 where w is the angular speed and I is the rotaional inirtia (for disk it is .5*mass*radius^2).
