STOM BUDNW What I Have Learned nuglewis Activity 4: QUANTITATIVE PROBLEMS Direction: Write your answers on a separate sheet of paper. You may also consult your Physics teacher. Three charged spheres are at the positions shown in the figure. (a) Find the net electrostatic force at sphere B.new (b) Find the net electric field at (4,-3)whendemanded an 4 cm 4.5uC 8.2 UC 3 cm 6.OuC Scoring Rubric Criteria 3 2 1 0 Physics The approach is The approach Some of the The solution Approach appropriate and contains minor concepts and doesn't indicate complete errors principles are an approach missing or inappropriate Procedure Mathematical and Mathematical Most of the All procedures logical procedures and logical mathematical and are incomplete are clear, procedures are logical procedures and contain complete, and missing/ contain errors connected errors Description Diagrams and Parts of the Most of the parts of The entire symbols used are diagrams and the diagrams and visualization is appropriate and symbols contain symbols are not wrong or did complete errors useful not include visualization