Which is true about tabacco 1 tobacco is a stimulant and a depressant 2 tobacco is a depressant 3 tabbacco is neither a stimulant or depressant 4 tobacco is a stimulant

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?