
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Two identical resistors \( R_0 \) are connected in series and connected to a direct voltage source. An ideal voltmeter is connected in parallel to one of the resistors, and its reading is \( U = 9 \) V. If the voltmeter is replaced with an ideal ammeter, its reading will be \( I = 2 \) A. Determine the value of \( R_0 \).

Present the answer in LaTex format: \boxed{Your answer}
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