I don't understand/ get how to answer questions 4 and 5 thanks
Original post by UtdJoshh
I'm stuck and help would be perfect! Thanks!
4(a)
You know that KE = eV
e is the charge of an electron in Coulombs which is .
Here you have , so what is your kinetic energy?
Then you do the same for all the other parts in 4, but remember to convert all your voltages into volts!
Question 5:
You know that KE is also , so you can say
.
You know what eV is from question 4 and m is the mass of the electron, which you're given.
Do you know what to do now to get V?
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