A 40-g ball of copper has a net charge of 2.5 µC. What fraction of the copper's electrons have been removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of 63.5 a.m.u.) Hint The fraction of electrons removed is (Note: Enter your answer this way. For example, if 1% of the electrons have been removed, enter "0.01" or "1E-2". Use the "E" notation to enter the number in scientific notation if needed. For example, to enter 3.14 × 10-¹2, type in "3.14E-12".)

A 40-g ball of copper has a net charge of 2.5 µC. What fraction of the copper's electrons have been removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of 63.5 a.m.u.) Hint The fraction of electrons removed is (Note: Enter your answer this way. For example, if 1% of the electrons have been removed, enter "0.01" or "1E-2". Use the "E" notation to enter the number in scientific notation if needed. For example, to enter 3.14 × 10-¹2, type in "3.14E-12".)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A 40-g ball of copper has a net charge of 2.5 µC. What fraction of the copper's electrons have been
removed? (Each neutral copper atom has 29 protons and 29 electrons, and copper has an atomic mass of
63.5 a.m.u.)
Hint
The fraction of electrons removed is
(Note: Enter your answer this way. For example, if 1% of the electrons have been removed, enter "0.01" or
"1E-2". Use the "E" notation to enter the number in scientific notation if needed. For example, to enter
3.14 x 10-¹2, type in "3.14E-12".)

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