1. Which would you prefer when one would like to have a brain improvement or enhancement, brain improvement drugs or healthy meals? Why?

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2