The four fundamental forces in nature; the force that depends on electric charge.

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Chapter 16, Problem 29QAP

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The four fundamental forces in nature; the force that depends on electric charge.

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(Figure 1) shows four electrical charges located at the corners of a rectangle. Like charges, you will recall, repel each other while opposite charges attract. Charge B exerts a repulsive force (directly away from B) on charge A of 3.0 N. Charge C exerts an attractive force (directly toward C) on charge A of 6.0 N. Finally, charge D exerts an attractive force of 2.0 N on charge A. 1. Assuming that forces are vectors, what is the magnitude of the net force F⃗ netF→net exerted on charge A? Express your answer in newtons. 2. What is the direction of the net force F⃗ netF→net exerted on charge A? Use the xy-plane with the origin at A and with x-axis directed to B. Express your answer in degrees measured clockwise from the negative y-axis.

Figure 1) shows four electrical charges located at the corners of a rectangle. Like charges, you will recall, repel each other while opposite charges attract. Charge BB exerts a repulsive force (directly away from BB) on charge AA of 4.8 NN. Charge CC exerts an attractive force (directly toward CC) on charge AA of 9.6 NN. Finally, charge DD exerts an attractive force of 3.2 NN on charge AA.

One correct comparison between the electrostatic force and the gravitational force is that (a) gravitational force is greater than the electrostatic force (b) the gravitational force increases with the increasing distance between two masses (c) gravitational force is always attractive (d) the electrostatic force is always repulsive