Add reports from the Electromagnetism Lab

Change-Id: I3a5abfa0b9ff7c834f4df7c03c710b0c5ee0fad2
diff --git a/quad8/electro/lab/p8/data/forca_velocitat.dat b/quad8/electro/lab/p8/data/forca_velocitat.dat
new file mode 100644
index 0000000..6cee4d9
--- /dev/null
+++ b/quad8/electro/lab/p8/data/forca_velocitat.dat
@@ -0,0 +1,4 @@
+421.8	1.0	7.60	0.08
+622.0	1.0	11.38	0.08
+821.1	1.0	14.88	0.36
+1021.2	1.0	19.80	0.67