You hold a ruler that has a charge on its tip 5.70 cm above a small piece of tissue paper to see if it can be picked up. The ruler has -10.0 C of charge. The tissue paper has 3.00 g of mass. What is the minimum charge required to pick up the tissue paper? 1.06e-9 What forces act on the tissue paper? How does Newton's second law apply to the forces? Which force can be related to the charges? C Additional Materials Reading Tutorial