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Ben2's latest activity
Ben2
posted the thread
Field due to an electric dipole (Halliday & Resnick, Ch. 27 problem 23)
in
Introductory Physics Homework Help
.
Using either H&R's Chapter 27 Example 3 or Problem 590 of the ##\mathbf{Physics Problem Solver}##, I've been unable to get the component...
Apr 12, 2024
Ben2
replied to the thread
Is It Possible to Invert a Homotopy?
.
Thanks to all for the references.
Mar 25, 2024
Ben2
replied to the thread
Is It Possible to Invert a Homotopy?
.
Thanks very much.
Mar 24, 2024
Ben2
posted the thread
Is It Possible to Invert a Homotopy?
in
Calculus and Beyond Homework Help
.
For F: X x I-->Y, defined by F(x,t) = y, next define G: Y x I-->X by G(y,u) = x. Then for t = u, we have F[G(y,t),t] = F{G[F(x,t),t]}...
Mar 24, 2024
Ben2
replied to the thread
Electron motion on axis of a charged ring
.
Thanks for the comments. For Mentor berkeman: Pending a computer cleanup, I've held off on installing a LaTeX translator (Is MathJax...
Mar 20, 2024
Ben2
posted the thread
Electron motion on axis of a charged ring
in
Introductory Physics Homework Help
.
Showing the motion is simple harmonic seems routine. The 5th equation on p. 674 gives...
Mar 19, 2024
Ben2
replied to the thread
How Do Right-Side Homotopies Affect Homotopy Equivalence?
.
Apologies for posting! With the conditions given, (hf)(gk) = h(fg)k\congh(\mathbb{1})k = hk\cong\mathbb{1} and (fh)(kg) =...
Mar 16, 2024
Ben2
posted the thread
How Do Right-Side Homotopies Affect Homotopy Equivalence?
in
Calculus and Beyond Homework Help
.
"[A] map f: X-->Y is called a \mathbf{homotopy~equivalence} if there is a map g: Y-->X such that fg\cong\mathbb{1} and...
Mar 16, 2024
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