Which of the following is not an example of descriptive research? 1.a respondent's recent experience of job loss and how it has affected his buying patterns
2. a respondent's account of how she was sold lipstick at the makeup counter of a department store
3. a respondent's reason for not buying a particular product that was sent in the mail as a sample
4. a respondent's description about how a particular brand of candy tastes in his mouth
Hel Pl (NO LINKS)

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.