username2889812
Badges: 19
Rep:
?
#1
Report Thread starter 1 year ago
#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?

:ta: for the acceleration in answers!
0
reply
Meowstic
Badges: 16
Rep:
?
#2
Report 1 year ago
#2
no acceleration needed, the proton loses electrical potential energy and gains kinetic energy
1
reply
username2889812
Badges: 19
Rep:
?
#3
Report Thread starter 1 year ago
#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? :hmmmm:
0
reply
Meowstic
Badges: 16
Rep:
?
#4
Report 1 year ago
#4
(Original post by Spannerin'moi)
PRSOM
but they haven't provided Kinetic energy...so how will I find out v? :hmmmm:
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.
0
reply
username2889812
Badges: 19
Rep:
?
#5
Report Thread starter 1 year ago
#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
reply
Meowstic
Badges: 16
Rep:
?
#6
Report 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
0
reply
username2889812
Badges: 19
Rep:
?
#7
Report Thread starter 1 year ago
#7
(Original post by yolkie)
yeah
:ta: a lot for accelerating!
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

What are you most likely to do if you don't get the grades you were expecting?

Go through Clearing (183)
38.28%
Take autumn exams (147)
30.75%
Look for a job (16)
3.35%
Consider an apprenticeship (21)
4.39%
Take a year out (83)
17.36%
Something else (let us know in the thread!) (28)
5.86%

Watched Threads

View All
Latest
My Feed