Final answer:
The question appears to involve angular momentum conservation but lacks the specifics needed to calculate the value of 'is'. Due to incomplete information, an exact numerical answer cannot be provided.
Step-by-step explanation:
The student's question seems to be related to the conservation of angular momentum, characterized by the formula Ωω = I'w', where Ω and ω are the initial moment of inertia and angular velocity, and I' and w' are the final moment of inertia and angular velocity. Unfortunately, the question itself as provided is incomplete and lacks the necessary details to determine the value of 'is.' Without additional context or numerical values, we cannot solve for an unknown variable. However, we can discuss the principle involved which states that the angular momentum of a system remains constant if no external torque acts on it.
The student should ensure that the complete question is provided to solve for specific values.