what is the ralationship between battery voltage and electric current when resistance is kept constant?

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Smallest intensity of a stimulus that you can detect 50 percent of the time is