ii. Suppose that this system starts with U A = U. = 9 J. Just before the spools hit the ground, which is where the zero for gravitational potential energy is chosen, spool A has translational kinetic energy K A =4 J, Determine the value of the rotational kinetic energy of spool A at this instant. Show your work.

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A: Your answer is option (b).

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Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”