Suppose two initial vectors intersect at a right angle and
form a resultant vector. the magnitudes of one initial
vector, a, and the resultant vector, r, are given.
which formula can be used to find the magnitude of the
other initial vector, b?
o bar
obr+ a
obar
obra?

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.