Basic Physics by Karl F. Kuhn & Frank Noschese

Author:Karl F. Kuhn & Frank Noschese [Kuhn, Karl F. & Noschese, Frank]
Language: eng
Format: epub
ISBN: 9781119629894
Publisher: Wiley
Published: 2020-09-23T00:00:00+00:00

where k is the constant of proportionality equal to 9 × 109 N·m2/C2.

What are the SI units in this equation?

F: __________; q 1 and q 2: __________; d: __________

Answer: newtons; coulombs; meters

A force of 9 × 109 N is not seen in normal cases of electrostatic force, since a coulomb is a far larger charge than is generally encountered. A normal charge may be a few microcoulombs (μC), where

Suppose you charge two small combs with 0.2 μC each by combing your hair.

How much charge, in coulombs, is on each comb? ___________________

What force do the combs exert on each other when they are 10 cm apart? ___________________

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