What is the difference in Ionization Energies of Lithium, Fluorine and Neon?

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west