ersity-PHYS 202-Fall18-STINNETTActivities and Due Dates HW: Electric Potential 9

Question

ersity-PHYS 202-Fall18-STINNETTActivities and Due Dates HW: Electric Potential 9/18/2018 10:00 PM 40/1009/14/2018 01:20 PM Grade Print ilCakulator bal Periodic Table estion 3 of 20 Map Sapling Learning You cause a particle to move from point A, where the electric potential is 15.9 V, to point B, where the electric potential is-27.7 V. Calculate the change that oocurs in the particle's electrostatic potential energy when the particle is: an electron. Number a proton Number a neutral hydrogen atom. Number a singly ionized helium atom (i.e., lacking one electron from its neutral state) Number Oparevous e check Answer 0 Next Ext Hint bout us carees terms of use contact us

Explanation / Answer

VA = 15.9 V

VB = -27.7 V

for an electrons

change in potential energy = -e * (VB - VA)

change in potential energy = -1.602 *10^-19 * (-27.7 - 15.9)

change in potential energy = 6.99 *10-18 J

for the proton

change in potential energy = e * (VB - VA)

change in potential energy = 1.602 *10^-19 * (-27.7 - 15.9)

change in potential energy = - 6.99 *10-18 J

for the neutral hydrogen atom

change in potential energy = q* (VB - VA)

change in potential energy = 0 * (-27.7 - 15.9)

change in potential energy = 0 J

for the single ionized Helium atom

as charge on atom = e

change in potential energy = e * (VB - VA)

change in potential energy = 1.602 *10^-19 * (-27.7 - 15.9)

change in potential energy = -6.99 *10-18 J

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