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Question (part 1 of 2) A certain moving electron has a kinetic en- ergy of 1.00 × 10-19 J. Calculate the speed necessary for the elec- tron to have this energy. The mass of an electron is 9.109 x 10-31 kg Answer in units of m/s Your response Submit answer Question (part 2 of 2) Calculate the speed of a proton having a kinetic energy of 1.00 x 1019 J and a mass of 1.673 x 10-27 kg Answer in units of m/s Your response
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Answer #1

Answer:

Kinetic energy of any particle in motion is given by,

K.E. = rac{1}{2}mv^2

412 Mass of electronニ9.109 x10-31 kg kinche eny * Jiven by nehi enur 1.00 X10-19J 2 2 x kE 2 x 4.00 x 10-19 1 4 101 x10-3 4685 5.575 kinetic enengy of Proton _00X10,19J pro ho 1.00X10-RJ = 2 กา -673 χD-27kg = 10933.697 ms

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