Troubleshooting F = q v B sin(theta) Calculation

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Homework Help Overview

The discussion revolves around the application of the equation F = q v B sin(theta) in a physics context, specifically related to calculating the force on a charged particle in a magnetic field. Participants are troubleshooting a calculation involving charge, velocity, magnetic field strength, and the angle between vectors.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the calculation of force using the given equation and question the correctness of the initial solution. There are inquiries about the angle theta and its relationship to other angles in the diagram. Some participants express confusion about the angle between the vectors involved.

Discussion Status

The discussion is ongoing with participants providing updates and clarifications. Some have offered insights into the angle theta, while others are exploring the implications of the vectors' orientations. There is no explicit consensus on the correct interpretation of the problem or the calculations involved.

Contextual Notes

There are mentions of missing information in the original problem statement, including the specification of charge and the complete context of the question. Participants are also referencing additional topics, such as Kirchhoff's current law, indicating a broader scope of inquiry.

MichaelTam
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Homework Statement
Exercise
Relevant Equations
## F = q v B sin(theta) ##, q=10mC for the airplane , the other statement are in the picture below.
I use the equation find that ## F = q v B sin(theta) ##
F = 0.01*300*5*10^-5*0.5
F =75 N
I don’t know why my solution is not correct?
 

Attachments

  • 7FF70F5A-B80C-43AF-88B1-CCEB50C0373E.png
    7FF70F5A-B80C-43AF-88B1-CCEB50C0373E.png
    25.7 KB · Views: 183
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MichaelTam said:
Homework Statement:: Exercise
Relevant Equations:: ## F = q v B sin(theta) ##, q=10mC for the airplane , the other statement are in the picture below.

I use the equation find that ## F = q v B sin(theta) ##
F = 0.01*300*5*10^-5*0.5
F =75 N
I don’t know why my solution is not correct?
Your attachment does not seem to show the whole question. It does not ask for the magnitude of the force and does not specify a charge.
 
Sorry , these are the updates.
 

Attachments

  • 134D2273-964F-4E7B-90BF-38A2EDE5BAD1.png
    134D2273-964F-4E7B-90BF-38A2EDE5BAD1.png
    24.4 KB · Views: 142
In the formula ## F = q v B sin(theta) ##, what is theta?
How does that compare with ##\alpha## in the diagram?
 
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Theta is ##pi/2 - pi/6##
 
So I get 129.9 micro Newton .
 
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Thanks a lot!
 
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But why theta is pi/2-pi/6. Thanks a lot.
 
IloveMathPhychembio said:
But why theta is pi/2-pi/6. Thanks a lot.
What is the angle between vectors ##\mathbf{v}## and ##\mathbf{B}##? Remember that the vectors must be placed tail-to-tail.
 
  • #10
kuruman said:
What is the angle between vectors ##\mathbf{v}## and ##\mathbf{B}##? Remember that the vectors must be placed tail-to-tail.
Thanks for your help and BTW do you know smth about kirchhoff's current law I've watch sooooo much videos about it and I don't understand why.
 
  • #11
IloveMathPhychembio said:
Thanks for your help and BTW do you know smth about kirchhoff's current law I've watch sooooo much videos about it and I don't understand why.
Thanks a lot for your help too 🙏👍😁
 
  • #12
IloveMathPhychembio said:
Thanks for your help and BTW do you know smth about kirchhoff's current law I've watch sooooo much videos about it and I don't understand why.
I do know smth about Kirchhoff laws, but if u want to ask a question about them, u have to start a new thrd.
 
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  • #13
I opened the thread called charge on cloud coulomb law cause I’ve finish the question by researching online day and night but thanks for your nice help and can you help me to deal with the new question🙏🏻🙏🏻🙏🏻
 

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