# Voltage required to speed up proton

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#1
A proton has a mass of 1.67 x 10^-27 kg
Calculate the magnitude of potential difference needed to accelerate it from rest to speed of 2.77 x 10^5 m/s in vacuum?

So ...should I someuse use kinematics equations here?

0
1 year ago
#2
no acceleration needed, the proton loses electrical potential energy and gains kinetic energy
1
#3
(Original post by yolkie)
no acceleration needed, the proton loses electrical potential energy and gains kinetic energy
PRSOM
but they haven't provided Kinetic energy...so how will I find out v?
0
1 year ago
#4
(Original post by Spannerin'moi)
PRSOM
but they haven't provided Kinetic energy...so how will I find out v?
They require a specific speed and you have the mass of a proton, you should know the charge or it will be on your data sheet. You should be familiar with the equations used in circuits in year 12, they apply here.
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#5
(Original post by yolkie)
They require a specific speed and you have the mass of a proton, you should know the charge or it will be on your data sheet. You should be familiar with the equations used in circuits in year 12, they apply here.
So it's based on this right?
1 eV = 1.6 x 10^-19 j?
0
1 year ago
#6
(Original post by Spannerin'moi)
So it's based on this right?
1 eV = 1.6 x 10^-19 j?
yeah
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#7
(Original post by yolkie)
yeah
a lot for accelerating!
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