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Q2) A typical Coulomb's law problem looks like this: There are several charges. What's the force on one of the charges (call it the "affected" charge) due to the other two or three charges (call them the "source" charges)? Our general approach: Conceptual analysis: Represent the forces on the affected charge by vectors. Draw the tail of each vector at the location of the affected charge. Label each vector something like this F2¬1 for the force of source charge (2) on the affected charge (1). The only physics you need to know here is like charges repel, opposite charges attract. Strategic analysis: Find the magnitudes of each of the forces on the affected charge using Coulomb's law 9192 (Remember r is the distance between qi and q2) then find the net force using vector superposition. F = k r2 Quantitative analysis: Carry out the calculations. (Reminders from 121: Find the x-components of each force and add them; find the y-components of each force and add them; use the Pythagorean theorem and trig to find the magnitude and direction of the resultant force.) Three charges (qı = -50 nC, q2 = +50 nC, q3 = +30 nC) are located at three corners of a rectangle, as shown. Follow the general strategy above, and try to work together on your whiteboard. a. Find the x- component of the net force on q3. 93 10 сm 92 y 5.0 cm

Q2) A typical Coulomb's law problem looks like this: There are several charges. What's the force on one of the charges (call it the "affected" charge) due to the other two or three charges (call them the "source" charges)? Our general approach: Conceptual analysis: Represent the forces on the affected charge by vectors. Draw the tail of each vector at the location of the affected charge. Label each vector something like this F2¬1 for the force of source charge (2) on the affected charge (1). The only physics you need to know here is like charges repel, opposite charges attract. Strategic analysis: Find the magnitudes of each of the forces on the affected charge using Coulomb's law 9192 (Remember r is the distance between qi and q2) then find the net force using vector superposition. F = k r2 Quantitative analysis: Carry out the calculations. (Reminders from 121: Find the x-components of each force and add them; find the y-components of each force and add them; use the Pythagorean theorem and trig to find the magnitude and direction of the resultant force.) Three charges (qı = -50 nC, q2 = +50 nC, q3 = +30 nC) are located at three corners of a rectangle, as shown. Follow the general strategy above, and try to work together on your whiteboard. a. Find the x- component of the net force on q3. 93 10 сm 92 y 5.0 cm

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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a) Find the x- component of the net force on q3.

b) Find the y- component of the net force on q3.

c) Find the magnitude and direction of the net force on q3. (Be sure to label the angle you are giving on the diagram.)

Q2) A typical Coulomb's law problem looks like this: There are several charges. What's the force on one of the charges (call it the "affected" charge) due to the other two or three charges (call them the "source" charges)? Our general approach: Conceptual analysis: Represent the forces on the affected charge by vectors. Draw the tail of each vector at the location of the affected charge. Label each vector something like this F2¬1 for the force of source charge (2) on the affected charge (1). The only physics you need to know here is like charges repel, opposite charges attract. Strategic analysis: Find the magnitudes of each of the forces on the affected charge using Coulomb's law 9192 (Remember r is the distance between qi and q2) then find the net force using vector superposition. F = k r2 Quantitative analysis: Carry out the calculations. (Reminders from 121: Find the x-components of each force and add them; find the y-components of each force and add them; use the Pythagorean theorem and trig to find the magnitude and direction of the resultant force.) Three charges (qı = -50 nC, q2 = +50 nC, q3 = +30 nC) are located at three corners of a rectangle, as shown. Follow the general strategy above, and try to work together on your whiteboard. a. Find the x- component of the net force on q3. 93 10 сm 92 y 5.0 cm
Transcribed Image Text:Q2) A typical Coulomb's law problem looks like this: There are several charges. What's the force on one of the charges (call it the "affected" charge) due to the other two or three charges (call them the "source" charges)? Our general approach: Conceptual analysis: Represent the forces on the affected charge by vectors. Draw the tail of each vector at the location of the affected charge. Label each vector something like this F2¬1 for the force of source charge (2) on the affected charge (1). The only physics you need to know here is like charges repel, opposite charges attract. Strategic analysis: Find the magnitudes of each of the forces on the affected charge using Coulomb's law 9192 (Remember r is the distance between qi and q2) then find the net force using vector superposition. F = k r2 Quantitative analysis: Carry out the calculations. (Reminders from 121: Find the x-components of each force and add them; find the y-components of each force and add them; use the Pythagorean theorem and trig to find the magnitude and direction of the resultant force.) Three charges (qı = -50 nC, q2 = +50 nC, q3 = +30 nC) are located at three corners of a rectangle, as shown. Follow the general strategy above, and try to work together on your whiteboard. a. Find the x- component of the net force on q3. 93 10 сm 92 y 5.0 cm
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