I NEED HELP.... I look in my text for an inverse square law and i get G=M1M2/d^2, But im not given a two masses.
The repusive force between two ceramic magnets was measured and found to depend on distance, as given in the table.
Separation, d (mm) Force,F (N)
10 3.93
12 0.40
14 0.13
16 0.057
18 0.030
20 0.018
22 0.011
24 0.0076
26 0.0053
28 0.0038
30 0.0028
B. Does the force follow an inverse square law?
Try this law: Force= k /distance^2
see if you can find k.
k= force*distance^2
Make a third column on your table above, k column. It will be the first column squared, times the second column.
If k remains a constant (or nearly so), you have an inverse square law.