Vrte une unswer to each question on a separate sheet of paper.
1. use billiard balls to describe the motion of particles in a gas. use
students in a crowded hallway to describe the motion of particles
in a liquid. use an audience in a movie theater to describe the
motion of particles in a solid.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Why does lightning travel from clouds to the ground?