Two boys weighing 60 N and 70 N sit on a see-saw. The boy weighing 60 N sits on the left side of a seesaw at a distance of 1m from the pivot while the other boy sits on the right side at a distance of 1.2 m. What distance must a third boy of weight 80 N sit on the left side in order to balance the see-saw?

Research and discuss the aurora borealis in terms of electric charges, magnetic fields, and forces. which times of the year are best for seeing the northern lights, and where are the best places to view them? explain your answers. also identify links to good images. if you’ve ever seen the aurora borealis, describe your experience and note the time and place that you saw it.