initial commit / add all books

6 files changed, 59 insertions, 0 deletions

diff --git a/896/CH4/EX4.1/1.sce b/896/CH4/EX4.1/1.sce
new file mode 100755
index 000000000..b2174a494
--- /dev/null
+++ b/896/CH4/EX4.1/1.sce
@@ -0,0 +1,10 @@
+clc

+//Example 4.1

+//calculate change in pot. energy per unit mass and total change in pot. energy

+g=9.81;//m/s^2 acc. due to gravity

+dh=23;//m change in height

+dpe=g*dh//m^2/s^2 change in pot energy per unit mass

+printf("change in pot. energy per unit mass is %f m^2/s^2\n",dpe);

+m=10;//kg

+dPE=m*dpe//kgm^2/s^2 or J change in pot. energy 

+printf("The total change in potential energy is %f J",dPE);
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diff --git a/896/CH4/EX4.2/2.sce b/896/CH4/EX4.2/2.sce
new file mode 100755
index 000000000..5945827fd
--- /dev/null
+++ b/896/CH4/EX4.2/2.sce
@@ -0,0 +1,7 @@
+clc

+//Example 4.2

+//calculate the kinetic energy of bullet

+m=0.01;//lbm mass of bullet

+v=2000;//ft/s

+KE=(m*v^2/2)*(1.356/32.2)//J

+printf("the kinetic energy of bullet is %f J",KE);
\ No newline at end of file
diff --git a/896/CH4/EX4.3/3.sce b/896/CH4/EX4.3/3.sce
new file mode 100755
index 000000000..3c1a93c4b
--- /dev/null
+++ b/896/CH4/EX4.3/3.sce
@@ -0,0 +1,9 @@
+clc

+//Example 4.3

+//Calculate the kinetic energy of bullet fired from a airplane

+v_bp=2000;//ft/s vel of bullet wrt plane

+v_p=-1990;//ft/s

+v_b=v_bp+v_p//ft/s vel of bullet wrt ground

+m=0.01;//lbm

+KE=(m*v_b^2/2)*(1.356/32.2)//J

+printf("the kinetic energy of bullet fired from a airplane is %f J",KE);
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diff --git a/896/CH4/EX4.4/4.sce b/896/CH4/EX4.4/4.sce
new file mode 100755
index 000000000..8ba14230b
--- /dev/null
+++ b/896/CH4/EX4.4/4.sce
@@ -0,0 +1,9 @@
+clc

+//Example 4.4

+//calculate the change in internal energy of the system

+p=14.7;//lbf/in^2 atmospheric pressure

+dV=1;//ft^3 change in volume

+dW=p*dV*(144/778)//Btu work done

+dQ=-42;//Btu heat removed from the system

+dU=dQ-dW//Btu change in internal energy of the system

+printf("the change in internal energy of the system is %f Btu",dU);
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diff --git a/896/CH4/EX4.5/5.sce b/896/CH4/EX4.5/5.sce
new file mode 100755
index 000000000..ef4627474
--- /dev/null
+++ b/896/CH4/EX4.5/5.sce
@@ -0,0 +1,12 @@
+clc

+//Example 4.5

+//calculate the work done

+//work done=change in pot. energy + change in kinetic energy considering steady flow and adiabatic conditions

+v_in=3;//m/s

+v_out=10;//m/s

+dke=(v_in^2-v_out^2)/2;//m^2/s^2

+g=9.81;//m/s^2

+dh=15;//m change in height in inlet and outlet

+dpe=g*dh;//m^2/s^2

+W=dpe+dke//J/kg

+printf("The work done is %f J/Kg",W);
\ No newline at end of file
diff --git a/896/CH4/EX4.6/6.sce b/896/CH4/EX4.6/6.sce
new file mode 100755
index 000000000..6b1af4478
--- /dev/null
+++ b/896/CH4/EX4.6/6.sce
@@ -0,0 +1,12 @@
+clc

+//Example 4.6

+//calculate the mass consumed in a nuclear reactor per unit time

+//let D=d/dt

+DQ=-13*10^8;//J/s

+DW=7*10^8;//J/s

+//Dm=(DQ-DW)/c^2 where c is velocity of light sice E=mc^2

+c=3*10^8;//m/s

+c1=3;//velocity of light without power

+pow=8//power of 10 in speed of light 

+Dm=(DW-DQ)/c/c1//kg/s

+printf("the mass consumed in a nuclear reactor per unit time is %f * 10^(-%d) kg/s",Dm,pow);
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