initial commit / add all books

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diff --git a/1271/CH15/EX15.10/10.txt b/1271/CH15/EX15.10/10.txt
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+++ b/1271/CH15/EX15.10/10.txt
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+ # PROBLEM 10 # 

+Standard formula used 

+ del_x*del_p = h/(4*pi) 

+ m = m_0/(1-(v^2/c^2))^1/2 

+

+ Uncertainty in determining the position is 1.920008e-12 m.

diff --git a/1271/CH15/EX15.10/example15_10.sce b/1271/CH15/EX15.10/example15_10.sce
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index 000000000..64240c193
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+clc 
+// Given that
+v = 3e7 // speed of electron in m/sec 
+e = 1.6e-19 // charge on an electron in C
+m = 9.1e-31 // mass of electron in kg
+h = 6.62e-34 // Planck constant in J-sec
+c = 3e8 // speed of light in m/sec
+// Sample Problem 10 on page no. 15.28
+printf("\n # PROBLEM 10 # \n")
+printf("Standard formula used \n")
+printf(" del_x*del_p = h/(4*pi) \n m = m_0/(1-(v^2/c^2))^1/2 \n")
+delta_p = m * v / sqrt(1 - (v/c)^2)
+delta_x = h / (4 * %pi * delta_p)
+printf("\n Uncertainty in determining the position is %e m.",delta_x)