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23 Nov 2019
Protons carry an electric charge ofe=1.60x10-19C,electrons carry charge of -e, and neutronsare electricallyneutral. Protons and neutrons have a mass of1.67x10-27kg, and electrons havea mass of9.11x10-31 kg. Auniform electric field can exert a forceon a charged particle thateffectively neutralizes the force ofgravity on the particle,causing it to be "weightless". What is thestrength of the electricfield that will levitate (a) a proton? (b)an electron? (c) analpha particle (two protons and twoneutrons)? I know the answer to each part will be in N/C. E=F/q. AndIbelieve q=1.60x10-19C. In order to find the strengthofthe field I need to find the force, F. F=ma from Newton'sSecondLaw. I don't have acceleration, so I was wondering how do Ifindacceleration for this specific problem?
Protons carry an electric charge ofe=1.60x10-19C,electrons carry charge of -e, and neutronsare electricallyneutral. Protons and neutrons have a mass of1.67x10-27kg, and electrons havea mass of9.11x10-31 kg. Auniform electric field can exert a forceon a charged particle thateffectively neutralizes the force ofgravity on the particle,causing it to be "weightless". What is thestrength of the electricfield that will levitate (a) a proton? (b)an electron? (c) analpha particle (two protons and twoneutrons)?
I know the answer to each part will be in N/C. E=F/q. AndIbelieve q=1.60x10-19C. In order to find the strengthofthe field I need to find the force, F. F=ma from Newton'sSecondLaw. I don't have acceleration, so I was wondering how do Ifindacceleration for this specific problem?
Irving HeathcoteLv2
23 Nov 2019
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