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The pads on a drawing board are weighed down with books, allowing a specific amount of hair to be extracted without:

Tangling
Breaking
Stretching
Shedding

1 Answer

6 votes

Final answer:

The question is about the principles of electric charge and force, illustrated by the way charged objects, like a used comb, can attract other objects, similar to the electrostatic process in laser printers.

Step-by-step explanation:

The student's question refers to the concept of electric force and electrostatic charges, which are fundamental concepts in Physics. For example, when a comb is used on hair and then attracts small strips of paper without physical contact, it's demonstrating static electricity. The comb becomes charged through the friction of combing and then induces an opposite charge in the paper strips, which causes the attraction due to electric force. This can be linked to the operation of laser printers, where toner is given a negative charge and then attracted to a positively charged drum. Here, the paper with a greater positive charge attracts the toner from the drum before it is melted and fused onto the paper by heated pressure rollers.

This illustrates the principles of electric charge and force in practical applications, showing how objects can interact without direct contact due to their electric properties.

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