Hi all,
I have been set an experiment of relating to the current needed to melt a wire (predominantly dealing with R = ρL/A). This sounds like a really dumb question (because it is :redface:) but why does the wire melt when too much current is passed through?
Also, what is the correlation...
How do i work out the total stopping distance for a car at 80mph given that:
SPEED ... TOTAL STOPPING DISTANCE
20mph ... 12m
30mph ... 23m
40mph ... 36m
50mph ... 53m
60mph ... 73m
70mph ... 96m
Note that mph denotes miles per hour and m metres
The above figures are widely agreed on...