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A is a device that helps do work by eit...

A ____ is a device that helps do work by either overcoming a force or changing the direction of the applied force.

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**Step-by-Step Solution:** 1. **Understanding the Question:** The question asks for a device that helps do work by either overcoming a force or changing the direction of the applied force. 2. **Identifying the Concept:** The concept we are dealing with here is related to "simple machines." Simple machines are devices that make work easier by allowing us to apply force in a more effective way. ...
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