initial commit / add all books

3 files changed, 42 insertions, 0 deletions

diff --git a/273/CH12/EX12.1/ex12_1.sce b/273/CH12/EX12.1/ex12_1.sce
new file mode 100755
index 000000000..23034172e
--- /dev/null
+++ b/273/CH12/EX12.1/ex12_1.sce
@@ -0,0 +1,13 @@
+clc;clear;

+//Example 12.1

+//calculation of natural frequency,magnetostriction

+

+//given values

+

+l=40*10^-3;//length of pure iron rod

+d=7.25*10^3;//density of iron in kg/m^3

+Y=115*10^9;//Young's modulus in N/m^2 

+

+//calculation

+f=(1*sqrt(Y/d))/(2*l);

+disp(f*10^-3,'the natural frequency(in kHz) is');

diff --git a/273/CH12/EX12.2/ex12_2.sce b/273/CH12/EX12.2/ex12_2.sce
new file mode 100755
index 000000000..6329869b8
--- /dev/null
+++ b/273/CH12/EX12.2/ex12_2.sce
@@ -0,0 +1,14 @@
+clc;clear;

+//Example 12.2

+//calculation of natural frequency

+

+//given values

+

+t=5.5*10^-3;//thickness in m

+d=2.65*10^3;//density in kg/m^3

+Y=8*10^10;//Young's modulus in N/m^2 

+

+

+//calculation

+f=(sqrt(Y/d))/(2*t);//frequency in hertz

+disp(f*10^-3,'the natural frequency(in kHz) is');

diff --git a/273/CH12/EX12.3/ex12_3.sce b/273/CH12/EX12.3/ex12_3.sce
new file mode 100755
index 000000000..b4f96c7ef
--- /dev/null
+++ b/273/CH12/EX12.3/ex12_3.sce
@@ -0,0 +1,15 @@
+clc;clear;

+//Example 12.3

+//calculation of depth and wavelength

+

+//given values

+

+f=.07*10^6;//frequency in Hz

+t=.65;//time taken for pulse to return

+v=1700;//velocity of sound in sea water in m/s

+

+//calculation

+d=v*t/2;//

+disp(d,'the depth of sea(in m) is');

+l=v/f;//wavelenght of pulse in m

+disp(l*10^2,'wavelength of pulse (in cm)is');
\ No newline at end of file