Can anybody tell me what they got for the constant E0? So what is the Permittivity of free space in base units? Since in the formula sheet is says: 8.85 x 10^-12 F m^-1, i said: F = m a = kg x m/s^2, therefore kg x m^-1 x m/s^2 which is kg/s^2.
Would be great if you can tell me if that is correct!
Can anybody tell me what they got for the constant E0? So what is the Permittivity of free space in base units? Since in the formula sheet is says: 8.85 x 10^-12 F m^-1, i said: F = m a = kg x m/s^2, therefore kg x m^-1 x m/s^2 which is kg/s^2.
Would be great if you can tell me if that is correct!
Dude, the F in that case is a unit, Farads, you've got it mixed up with the symbol for Force. I worked it out from coulombs law which was given, can't remember what I got though.
How do you get an A* in Edexcel Physics? Do you need to get A*s in both units 4 & 5, or do you just have to average an A* in both units? (I'm using you also need at least an A at AS)
How do you get an A* in Edexcel Physics? Do you need to get A*s in both units 4 & 5, or do you just have to average an A* in both units? (I'm using you also need at least an A at AS)
average at least 90% in A2 Units and at least 480 UMS in total over the whole a level
Dude, the F in that case is a unit, Farads, you've got it mixed up with the symbol for Force. I worked it out from coulombs law which was given, can't remember what I got though.
Yeah I think so, obviously unless you dropped 30 UMS in PSA4 cause you need 270/300. I screwed up so bad in the cwk and got a B, it's still possible for me to get the A* but so difficult, think I did well today though so I'm relying on PSA5 too
Dude, the F in that case is a unit, Farads, you've got it mixed up with the symbol for Force. I worked it out from coulombs law which was given, can't remember what I got though.
Oh god, no. i am so stupid. Obvious mistake. bye bye easy 3 marks. now i have 74 out of 80 xD