I set up an interesting experiment with two objects, both made of wood (see Figure 3. There's a stick and a cube, and in each I embed a piece of iron, The stick has the iron at one end and the cube has it at its center. The objects both sit in a strong electromagnet, both start from rest. When I turn the electromagnet on, each object feels the same constant force to the right that makes them accelerate for as long as they're in the electromagnet (a distance d). Let's call mg the mass of the cube; ms the mass of the stick, and they aren't necessarily the same. tic is the (linear) speed of the cube; Us is the speed of the stick (that is, the speed of its center of mass); (05 is its angular velocity around its center of mass, and I5 is its mo- ment of inertia. (Ignore any frictional effectsi.) A. Write an expression for each of their energies as they exit the electromagnet. How would you compare those energies? B. How would you compare their velocities? Momenta? _____.__.-.-_,_.______--____...-._,_,_,_ -.u-..-. 0 'I' Figure 3: A stick and cube with em- bedded iron, subject ino a constant force while in the electromagnet