When……………is conserved,………………may……………. .

Explanation

To solve the question, we need to fill in the blanks based on the relationship between angular momentum and rotational kinetic energy.

### Step-by-Step Solution:

1. **Identify the Conservation Principle**:
- We start by recognizing that the question is about conservation laws in physics. The key term here is "conserved," which leads us to think about quantities that can remain constant in a system.

2. **Angular Momentum**:
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