Given the molecular formulas, write the empirical formulas in the spaces provided. C6H4Cl2
C6H5Cl
N2O5

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

If c + di is a point on the circle, then | c + di |=