Math Problem Statement
Three charges q1 = 77.3 nC, q2 = 95.5 nC, q3 = 94 nC are arranged on the vertices of an equilateral triangle with side length 0.024 m. A fourth charge q4 = 11.4 nC is placed at the center of the triangle. (Remember that for an equilateral triangle of side length L, the distance between a vertex and the center of the triangle is (\sqrt(3))/(3)). Give all answers to three significant figures. The angle at q1 is 60 degrees. What is the x component of the force q1 exerts on q4?
Solution
To calculate the x-component of the force that exerts on , we will follow these steps:
Step 1: Calculate the distance between and
For an equilateral triangle with side length , the distance between a vertex and the center of the triangle is:
Let's calculate this value first.
Step 2: Calculate the force magnitude between and
Using Coulomb's law, the magnitude of the force between two charges is:
where , and is the distance from to .
Step 3: Find the x-component of the force
The force exerted by on makes an angle of with the x-axis. The x-component of the force is:
Now, let's compute these values step by step.
First, we'll calculate .The distance between and is approximately .
Now let's calculate the force magnitude using Coulomb's law:
where:
Let's compute the force.The magnitude of the force between and is approximately .
Now, let's calculate the x-component of this force:
Let me compute that for you.The x-component of the force that exerts on is approximately .
Would you like any further details or clarification?
Here are 5 related questions for further exploration:
- What is the y-component of the force exerts on ?
- What is the net force on due to all three charges , , and ?
- How does the force change if is moved closer to one of the charges?
- What is the potential energy of the system due to these four charges?
- How would the force change if the charges were doubled?
Tip: When dealing with forces in a symmetrical arrangement, breaking them into components can significantly simplify the calculation.
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Math Problem Analysis
Mathematical Concepts
Electrostatics
Vector Components
Coulomb's Law
Formulas
Coulomb's Law: F = k_e * (|q1 * q4|) / r^2
Vector Component: Fx = F * cos(θ)
Distance from vertex to center in an equilateral triangle: r = (L * √3) / 3
Theorems
Coulomb's Law
Suitable Grade Level
Undergraduate Physics or Advanced High School (Grades 11-12)