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Do you mean, can they be in either order? Yes. It's the order of the integral signs that defines the order of integration (inside first).Quarlep said:Can dtheta and dphi change sides
The discussion focuses on calculating the average velocity of a spherical shell that expands and moves, specifically addressing the velocities involved: expansion velocity (v) and movement velocity (v'). Participants clarify that while expansion velocities can cancel out in certain contexts, the average velocity remains dependent on the movement velocity v'. The kinetic energy of the shell is also discussed, emphasizing that energy is a scalar quantity and does not simply cancel out like vector quantities. The conversation highlights the need for proper mathematical treatment, including the use of double integrals in spherical coordinates for accurate calculations.
PREREQUISITESStudents studying physics, particularly those focusing on mechanics and energy concepts, as well as educators looking for examples of complex motion and energy calculations involving spherical objects.
Do you mean, can they be in either order? Yes. It's the order of the integral signs that defines the order of integration (inside first).Quarlep said:Can dtheta and dphi change sides
Sorry, I don't understand what you are asking.Quarlep said:Can you tell me what was that please the only thing I ll do is put it on program
Do you simply want the answer to the original question, by whatever means, or do you specifically want to see how to do it through an elaborate double integral?Quarlep said:The answer :):)
Then use my symmetry method. It gets rid of the trig terms and makes the integral trivial.Quarlep said:I want to see answer to the original question
I think it should be exactly half that.Quarlep said:I was banned so I couldn't answer over a 10 days I found 4p(pi)r^2((v'^2)+v^2)