From 9d854d6aa30c568a73bd2cc19f5adcddb04d2abd Mon Sep 17 00:00:00 2001 From: "W. Trevor King" Date: Tue, 25 Aug 2009 02:53:32 -0400 Subject: [PATCH] Added topic tags to some Y&F-12 problems --- latex/problems/Young_and_Freedman_12/problem27.22.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.30.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.35.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.39.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.64.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.68.tex | 2 +- latex/problems/Young_and_Freedman_12/problem27.73.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.12.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.18.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.23.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.30.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.60.tex | 2 +- latex/problems/Young_and_Freedman_12/problem28.62.tex | 2 +- 13 files changed, 13 insertions(+), 13 deletions(-) diff --git a/latex/problems/Young_and_Freedman_12/problem27.22.tex b/latex/problems/Young_and_Freedman_12/problem27.22.tex index 789d090..43cce56 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.22.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.22.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.22} +\begin{problem*}{27.22} % cyclotrons In an experiment with cosmic rays, a verticle beam of particles that have charge of magnitude $3e$ and mass $12$ times the proton mass enters a uniform horizontal magnetic field of $0.250\U{T}$ and is bent diff --git a/latex/problems/Young_and_Freedman_12/problem27.30.tex b/latex/problems/Young_and_Freedman_12/problem27.30.tex index 3825683..5435f8f 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.30.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.30.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.30} +\begin{problem*}{27.30} % Lorentz force A particle with initial velocity $\vect{v}_0=5.85\E{3}\U{m/s}\jhat$ enters a region of uniform electric and magnetic fields. The magnetic field in the region is $\vect{B}=-(1.35\U{T})\khat$. Calculate the diff --git a/latex/problems/Young_and_Freedman_12/problem27.35.tex b/latex/problems/Young_and_Freedman_12/problem27.35.tex index 4c33eed..6b9ee4b 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.35.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.35.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.35} +\begin{problem*}{27.35} % magnetic force on wires A long wire carrying $4.50\U{A}$ of current makes two $90\dg$ bends, as shown in Fig.~27.49. The bent part of the wire passes through a uniform $0.240\U{T}$ magnetic field direceted as shown in the figure diff --git a/latex/problems/Young_and_Freedman_12/problem27.39.tex b/latex/problems/Young_and_Freedman_12/problem27.39.tex index 7268a97..259d73e 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.39.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.39.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.39} +\begin{problem*}{27.39} % rail guns A thin, $50.0\U{cm}$ long metal bar with mass $750\U{g}$ rests on, but is not attached to, two metallic supports in a uniform $0.450\U{T}$ magnetic field, as shown in Fig.~27.51. A battery and a diff --git a/latex/problems/Young_and_Freedman_12/problem27.64.tex b/latex/problems/Young_and_Freedman_12/problem27.64.tex index 0f7361a..add4713 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.64.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.64.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.64} +\begin{problem*}{27.64} % magnetic force on charges A particle of charge $q>0$ is moving at speed $v$ in the $+z$-direction through a region of uniform magnetic field \vect{B}. The magnetic force on the particle is $\vect{F}=F_0(3\ihat+4\jhat)$, diff --git a/latex/problems/Young_and_Freedman_12/problem27.68.tex b/latex/problems/Young_and_Freedman_12/problem27.68.tex index d89c89f..b1cbaeb 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.68.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.68.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.68} +\begin{problem*}{27.68} % rail guns A $3.00\U{N}$ metal bar, $1.50\U{m}$ long and having a resistance of $10.0\U{\Ohm}$, rests horizontally on conducting wires connecting it to the circuit shown in Fig.~27.62. The bar is in a uniform, diff --git a/latex/problems/Young_and_Freedman_12/problem27.73.tex b/latex/problems/Young_and_Freedman_12/problem27.73.tex index a6e118e..ec47cc2 100644 --- a/latex/problems/Young_and_Freedman_12/problem27.73.tex +++ b/latex/problems/Young_and_Freedman_12/problem27.73.tex @@ -1,4 +1,4 @@ -\begin{problem*}{27.73} +\begin{problem*}{27.73} % magnetic force on wires A long wire carrying a $6.00\U{A}$ current reverses direction by means of two right-angle bends, as shown in Fig.~27.64. The part of the wire where the bend occurs is in a magnetic field of $0.666\U{T}$ diff --git a/latex/problems/Young_and_Freedman_12/problem28.12.tex b/latex/problems/Young_and_Freedman_12/problem28.12.tex index 30df69a..3d293da 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.12.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.12.tex @@ -1,7 +1,7 @@ \newcommand{\dB}{d\vect{B}} \newcommand{\dl}{d\vect{l}} -\begin{problem*}{28.12} +\begin{problem*}{28.12} % Biot-Savart law, magnetic field from wires Two parallel wires are $5.00\U{cm}$ apart and carry currents in opposite directions, as shown in Fig.~28.37. Find the magnitude and direction of the magnetic field at point $P$ due to the two diff --git a/latex/problems/Young_and_Freedman_12/problem28.18.tex b/latex/problems/Young_and_Freedman_12/problem28.18.tex index 0fc786a..fea23f9 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.18.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.18.tex @@ -1,4 +1,4 @@ -\begin{problem*}{28.18} +\begin{problem*}{28.18} % magnetic field from wires Two long, straight wires, one above the other, are seperated by a distance $2a$ and are parallel to the $x$-axis. Let the $+y$-axis be in the plane of the wires in the direction from the lower wire to the diff --git a/latex/problems/Young_and_Freedman_12/problem28.23.tex b/latex/problems/Young_and_Freedman_12/problem28.23.tex index cb59801..91b5cfe 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.23.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.23.tex @@ -1,4 +1,4 @@ -\begin{problem*}{28.23} +\begin{problem*}{28.23} % magnetic field from wires Four long, parallel power lines each carry $100\U{A}$ currents. A cross-sectional diagram of these lines if a square, $20.0\U{cm}$ on each side. For each of the three cases shown in Fig.~28.41, calculate diff --git a/latex/problems/Young_and_Freedman_12/problem28.30.tex b/latex/problems/Young_and_Freedman_12/problem28.30.tex index b7177fa..b81ab53 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.30.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.30.tex @@ -2,7 +2,7 @@ %\newcommand{\dB}{d\vect{B}} %\newcommand{\dl}{d\vect{l}} -\begin{problem*}{28.30} +\begin{problem*}{28.30} % Biot-Savart law, magnetic field from wires Calculate the magnitude and direction of the magnetic field at point $P$ due to the current in the semicircular section of wire shown in Fig.~28.46. (\emph{Hint:} Does the current in the long, straight diff --git a/latex/problems/Young_and_Freedman_12/problem28.60.tex b/latex/problems/Young_and_Freedman_12/problem28.60.tex index bbda9f7..69880c9 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.60.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.60.tex @@ -1,4 +1,4 @@ -\begin{problem*}{28.60} +\begin{problem*}{28.60} % magnetic field from wires Figure~28.54 shows an end view of two long, parallel wires perpendicular to the $xy$-plane, each carrying a current $I$ but in opposite directions. \Part{a} Copy the diagram, and draw vectors to diff --git a/latex/problems/Young_and_Freedman_12/problem28.62.tex b/latex/problems/Young_and_Freedman_12/problem28.62.tex index 4ad4789..76f366c 100644 --- a/latex/problems/Young_and_Freedman_12/problem28.62.tex +++ b/latex/problems/Young_and_Freedman_12/problem28.62.tex @@ -1,4 +1,4 @@ -\begin{problem*}{28.62} +\begin{problem*}{28.62} % magnetic force on wires, magnetic field from wires A pair of long, rigid metal rods, each of length $L$, lie parallel to each other on a perfectly smooth table. Their ends are connected by identical, very light conducting springs of force constant $k$ -- 2.26.2