Think back to coulomb's law. two coins with identical charges are placed on a lab table 1.35 m apart.
a. if each coin experiences a force of 2.0 n because of the presence of the other coin, calculate the charge on each coin.

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

How is zig zagging a form of acceleration?