What's an example of a task that requires knowledge of physical objects to perform?
My iPhone earbuds aren't working right.

What's an example of a task that requires knowledge of physical objects to perform?
To clean copper, you can

What's an example of a task that requires knowledge of physical objects to perform?
How to best cut a mango?

What's an example of a task that requires knowledge of physical objects to perform?
How do I cut the strips of fleece ?