A. Electrostatics in Plastic Strips Materials: 1 inch-wide by 4 inches long plastic cover strip, crumpled paper Procedure: 1. Cut 2 pieces of 1 inch-wide by 4 inches long plastic cover strip. 2. Using a crumpled paper, flatten and rub the two strips and; 3. Immediately put it face to face to each other. Observe. What happened to the plastic strips? What electrostatics are interacting with each other?

What is the strength of an electric field that will balance the weight of a proton?Express your answer in newtons per coulomb to two significant figures. What is the direction of an electric field that will balance the weight of a proton? What is the strength of an electric field that will balance the weight of an electron?Express your answer in newtons per coulomb to two significant figures.

A charge of 0.4 Coulombs is placed 544 meters from a charge of 2 Coulombs. Use F=kq1q2r2F=kq1q2r2 and  k=9x109Nm2C2k=9x109Nm2C2 to find the force between them.  You can round your answer to the nearest whole number.

Coulomb’s law tells us that the electrostatic force between two charged objects can be calculated by: ?= ??1?2/?^2Where k is a constant with a value of 8.99x109 Nm2/C2; ?1 and ?2 are the charges of the two particles (1.602x10-19 C), and r is the distance between the two particles. The force is attractive if the charges of the two particles is opposite (one’s positive and one’s negative) and repulsive if the charges have the same charge (both positive or both negative). Calculate the electrostatic force on proton #1 from the other two protons.Will the gravitational force between the protons be attractive or repulsive? What about the electrostatic force? Which has the larger magnitude, the electrostatic force or the gravitational force? Can the electrostatic and gravitational forces alone create a stable Lithium nucleus?