Estimate the minimum amount of `._(235)^(92)U` that needs to undergo fission in order to run a `1000 MW` power reactor per year of continuous operation. Assume an efficiency of about `33` percent.

Explanation

To solve the problem of estimating the minimum amount of Uranium-235 that needs to undergo fission to run a 1000 MW power reactor continuously for a year, we can follow these steps:

### Step 1: Determine the required output power
Given:
- Required power output = 1000 MW
- Efficiency of the reactor = 33%

We can find the actual power input required using the formula:
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