I think by using data collected by Tycho Brahe
Explanation:
They will repel, meaning that they are made of an electrical conductor.
Answer:
The first graph is showing the constant acceleration (1 m/s)
Explanation:
The second graph showing the flexible velocity therefore a in the graph is different at t1, t2, t3, t4
The last graph is showing constant velocity therefore there is no acceleration (a = 0)