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Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 18 - Problem 40
Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 18 - Problem 40

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# Two point charges q1 and q2 are 3.00 m apart, and their total charge is 20 C . (a) If

ISBN: 9781938168932 372

## Solution for problem 40 Chapter 18

College Physics for AP® Courses | 1st Edition

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College Physics for AP® Courses | 1st Edition

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Problem 40

Two point charges q1 and q2 are 3.00 m apart, and their total charge is 20 C . (a) If the force of repulsion between them is 0.075N, what are magnitudes of the two charges? (b) If one charge attracts the other with a force of 0.525N, what are the magnitudes of the two charges? Note that you may need to solve a quadratic equation to reach your answer.

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Chapter5:Newton’sLaws Thegoalofmechanicsistotakewhatisknownaboutasystemofobjects andtotherebydeterminewhataccelerationofeachofthoseobjectwillbe. Principleofinertia–abodymovingonalevelsurfacewillcontinueinth e samedirectionatconstantspeedunlessdisturbed LawI:Everybodypreservesinitsstateofrest,orofuniformmotionina straightline,unlessitiscompelledtochangethatstatebyforcesimpressed onit. Allobjectsmoveatconstantvelocity:unlessacteduponbyanoutsideforce Newton’sfirstlawsimplydoesnotapplyinareferenceframethatis accelerating;itonlyappliesinframeswhereitapplies.Soitismerelya definition.ThereferencesystemswhereNewton’sfirstlawappliesare calledinertialframes,andtheyaredefinedasthoseframesinwhich Newton’sfirstlawapplies.Ifyouseeallobjectswithnoforcesonthem moveataconstantvelocitythenyouareinaninertialframe,andNewton ’s firstlawwillwork. *referenceframestiedtotheearthmaybeassumedtobeaninert ialframe tohighaccuracy. Thequantityofmotionisthewaytomeasuremotion,arisingastheproduct ofmassandvelocity.Nowcalledmomentum. LawII:Thechangeinmotionisalwaysproportionaltotheappliedforce,and ismadeinthedirectionofthestraightlineinwhichthatforceisapplied. = maisproportionaltotheforce,notequal 2 TheforceunitisNewton1N=1kgxm/s Mas

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