Experiment: Click Return to original settings. Using the Gizmo, test the effect of precipitation on the rate of weathering by measuring the amount of weathered sandstone in 20,000 years with low and high precipitation. Be sure to keep all the other variables the same. Describe your results below.

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

magnified images possible images can be real = projected onto a screen

no. dot product   =0 when vecs at right angles

answera compound;