Which of the following represent units of an electric field? Select all that apply.

Newton∙meters
Volts/meter
Voltmeters
Newtons/meter
Joules/coulomb
Newtons/Coulomb

If the speed of a particle triples ,by what factor does its kinetic energy increase?

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.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical