Identify the independent and dependent variables of a project about which sheet of paper fall fastest: unfolded, crumpled or folded in fourths.

What are similarities and differences of reflection, refraction, diffraction and absorption?

What is the temperature in degrees celsius of a substance with a tempature of 49k

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative