initial commit / add all books

5 files changed, 50 insertions, 0 deletions

diff --git a/2258/CH8/EX8.1/8_1.sce b/2258/CH8/EX8.1/8_1.sce
new file mode 100755
index 000000000..65c426cea
--- /dev/null
+++ b/2258/CH8/EX8.1/8_1.sce
@@ -0,0 +1,9 @@
+clc();

+clear;

+// To calculate the surface area to volume ratio

+r=5;    //radius in m

+SA=4*%pi*r^2;    //surface area of sphere in m^2

+V=(4/3)*%pi*r^3;   //volume of sphere in m^3

+R=SA/V;    //ratio

+//surface area to volume ratio can also be given by 3/radius

+printf("surface area to volume ratio of sphere is %f m-1",R);

diff --git a/2258/CH8/EX8.2/8_2.sce b/2258/CH8/EX8.2/8_2.sce
new file mode 100755
index 000000000..831d4b0a1
--- /dev/null
+++ b/2258/CH8/EX8.2/8_2.sce
@@ -0,0 +1,10 @@
+clc();

+clear;

+// To calculate the surface area to volume ratio

+d=26;   //distance in m

+r=d/2;    //radius in m

+SA=4*%pi*r^2;    //surface area of sphere in m^2

+V=(4/3)*%pi*r^3;   //volume of sphere in m^3

+R=SA/V;    //ratio

+//surface area to volume ratio can also be given by 3/radius

+printf("surface area to volume ratio of sphere is %f m-1",R);

diff --git a/2258/CH8/EX8.3/8_3.sce b/2258/CH8/EX8.3/8_3.sce
new file mode 100755
index 000000000..dabc7205a
--- /dev/null
+++ b/2258/CH8/EX8.3/8_3.sce
@@ -0,0 +1,7 @@
+clc();

+clear;

+// To calculate the volume of cone

+r=1;   //radius in m

+h=1;   //height in m

+V=(1/3)*%pi*(r^2)*h;

+printf("volume of cone is %f m^3",V); 

diff --git a/2258/CH8/EX8.4/8_4.sce b/2258/CH8/EX8.4/8_4.sce
new file mode 100755
index 000000000..5b348ec92
--- /dev/null
+++ b/2258/CH8/EX8.4/8_4.sce
@@ -0,0 +1,10 @@
+clc();

+clear;

+// To calculate the total surface area of cone

+r=3;   //radius in m

+h=4;   //height in m

+SA=%pi*r*sqrt((r^2)+(h^2));

+TSA=SA+(%pi*r^2);

+printf("total surface area of cone is %f m^2",TSA);

+

+//answer given in the book is wrong

diff --git a/2258/CH8/EX8.5/8_5.sce b/2258/CH8/EX8.5/8_5.sce
new file mode 100755
index 000000000..6b4e31a6f
--- /dev/null
+++ b/2258/CH8/EX8.5/8_5.sce
@@ -0,0 +1,14 @@
+clc();

+clear;

+// To calculate the height of cone

+V=100;   //volume of cone in cubic inches

+r=5;   //radius of cone in inches

+r_m=r*0.0254;    //radius of cone in m

+//volume V=(1/3)*%pi*(r^2)*h

+//therefore h = (3*V)/(%pi*r^2)

+h=(3*V)/(%pi*r^2);   //height in inches

+R=3/r_m;

+printf("height of the cone is %f inches",h);

+printf("surface area to volume ratio is %f m-1",R);

+

+//answer for the surface area to volume ratio given in the book is wrong