10. Philip is chasing his dog. He has four times more mass than the dog, but he can only run half as fast as the dog. What is
Philip's momentum, compared to his dog's?

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

root word, prefixes, and suffixes

snell's law

refractve index = sin incidence / sin refraction