Physics Pp:3-Variant 2- Discussing Answers!!

[Chucky]

It can't be more than 3 days because you have to add background radiation(14) to 19 so from the graph you have to see the time when the count rate is 33, not 19

yes I know, this post is very old, before I found out i forgot to add back background radiation.

 

[Skyrior]

minus 1 mark for forgetting to do 40-32 = 8 in the light bulb question...
i wrote 32....sigh...
that's all i lost though...

 

[B333]

what did you guys write for that question on static electrcity and the direction of the electric field around that point and the question underneath it?