Do levers always act alone, or do they act with other machines? Give an example of a lever working with another simple machine.

Explanation

### Step-by-Step Solution:

1. **Understanding Levers**: A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum. It is used to lift or move loads with less effort.

2. **Levers and Other Machines**: Levers do not always act alone; they can work in conjunction with other simple machines. This combination can enhance their effectiveness and efficiency in performing work.

3. **Example of a Lever with Another Machine**: One common example is a leaf cutter. In this tool, the lever is the handle that pivots around the fulcrum.

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