Added(A)/Deleted(D) following books

 M  A_Textbook_of_Electronic_Circuits_by_R._S._Sedha/Chap34.ipynb
M  A_Textbook_of_Electronic_Circuits_by_R._S._Sedha/Chap34_2.ipynb
A  A_Textbook_of_Electronic_Circuits_by_R._S._Sedha/README.txt
R  Electronic_Devices_and_Circuits/screenshots/Screenshot01.png -> Electronic_Devices_and_Circuits/screenshots/S1.png
R  Electronic_Devices_and_Circuits/screenshots/Screenshot02.png -> Electronic_Devices_and_Circuits/screenshots/S2.png
R  Electronic_Devices_and_Circuits/screenshots/Screenshot03.png -> Electronic_Devices_and_Circuits/screenshots/S3.png
R  Introduction_to_flight_by_J_D_Anderson/8._Space_Flight_(Astronautics).ipynb -> Introduction_to_flight_by_J_D_Anderson/8._Space_Flight_Astronautics.ipynb
R  Microwave_and_Radar_Engineering_by_M._Kulkarni/screenshots/sachin1.png -> Microwave_and_Radar_Engineering/screenshots/s1.png
R  Microwave_and_Radar_Engineering_by_M._Kulkarni/screenshots/sachin2.png -> Microwave_and_Radar_Engineering/screenshots/s2.png
R  Microwave_and_Radar_Engineering_by_M._Kulkarni/screenshots/sachin3.png -> Microwave_and_Radar_Engineering/screenshots/s3.png
A  sample_notebooks/Harshitgarg/Chapter_1-INTRODUCTION_TO_MECHANICS_OF_SOLIDS_.ipynb

1 files changed, 223 insertions, 0 deletions

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example1.1 Page number 10\n",
+    "#downstream direction as x\n",
+    "#direction across river as y\n",
+    "\n",
+    "from math import sqrt,atan,pi\n",
+    "\n",
+    "#variable declaration\n",
+    "\n",
+    "Vx= 8                       #velocity of stream, km/hour\n",
+    "Vy=float(20)                       #velocity of boat,km/hour\n",
+    "\n",
+    "V=sqrt(pow(Vx,2)+pow(Vy,2)) #resultant velocity, km/hour\n",
+    "theta=Vy/Vx\n",
+    "\n",
+    "alpha= atan(theta)*180/pi   #angle, degrees     \n",
+    "\n",
+    "print \" The resultant velocity :\",round(V,2),\"km/hour\"\n",
+    "print round(alpha,2),\"°\"\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.2 Page number 10\n",
+    "\n",
+    "\n",
+    "#components of force in horizontal and vertical components. \n",
+    "from math import cos,sin,pi\n",
+    "#variable declaration\n",
+    "\n",
+    "F= 20                        #force in wire, KN\n",
+    "\n",
+    "#calculations\n",
+    "Fx= F*cos(60*pi/180)          \n",
+    "Fy= F*sin(60*pi/180)\n",
+    "\n",
+    "print round(Fx,2),\"KN\" ,\"(to the left)\"\n",
+    "print round(Fy,2), \"KN\" ,\"(downward)\"\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.3 Page number 11\n",
+    "\n",
+    " #The plane makes an angle of 20° to the horizontal. Hence the normal to the plane makes an angles of 70° to the horizontal i.e., 20° to the vertical\n",
+    "from math import cos,sin,pi\n",
+    "#variable declaration\n",
+    "W= 10                        # black weighing, KN\n",
+    "\n",
+    "#calculations\n",
+    "\n",
+    "Nor= W*cos(20*pi/180)             #Component normal to the plane\n",
+    "para= W*sin(20*pi/180)            #Component parallel to the plane\n",
+    "\n",
+    "print \"Component normal to the plane :\",round(Nor,2),\"KN\"\n",
+    "print \"Component parallel to the plane :\",round(para,2) , \"KN\"\n",
+    "\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.4 Page number 11\n",
+    "\n",
+    "#Let the magnitude of the smaller force be F. Hence the magnitude of the larger force is 2F\n",
+    "\n",
+    "from math import pi,sqrt, acos\n",
+    "#variable declaration\n",
+    "R1=260            #resultant of two forces,N\n",
+    "R2=float(180)          #resultant of two forces if larger force is reversed,N\n",
+    "\n",
+    "\n",
+    "\n",
+    "#calculations\n",
+    "\n",
+    "F=sqrt((pow(R1,2)+pow(R2,2))/10)\n",
+    "F1=F\n",
+    "F2=2*F\n",
+    "theta=acos((pow(R1,2)-pow(F1,2)-pow(F2,2))/(2*F1*F2))*180/pi\n",
+    "\n",
+    "print \"F1=\",F1,\"N\"\n",
+    "print  \"F2=\",F2,\"N\"\n",
+    "print \"theta=\",round(theta,1),\"°\"\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.5 Page number 12\n",
+    "\n",
+    "#Let ?ABC be the triangle of forces drawn to some scale\n",
+    "#Two forces F1 and F2 are acting at point A\n",
+    "#angle in degrees '°'\n",
+    "\n",
+    "from math import  sin,pi\n",
+    "  \n",
+    "#variabble declaration\n",
+    "cnv=pi/180\n",
+    "\n",
+    "BAC = 20*cnv                           #Resultant R makes angle with F1    \n",
+    " \n",
+    "ABC = 130*cnv                    \n",
+    "\n",
+    "ACB = 30*cnv   \n",
+    "\n",
+    "R =  500                            #resultant force,N\n",
+    "\n",
+    "#calculations\n",
+    "#sinerule\n",
+    "\n",
+    "F1=R*sin(ACB)/sin(ABC)\n",
+    "F2=R*sin(BAC)/sin(ABC)\n",
+    "\n",
+    "print \"F1=\",round(F1,2),\"N\"\n",
+    "print \"F2=\",round(F2,2),\"N\"\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.6 Page number 12\n",
+    "\n",
+    "#Let ABC  be the triangle of forces,'theta' be the angle between F1 and F2, and 'alpha' be the angle between resultant and F1 \n",
+    "\n",
+    "from math import sin,acos,asin,pi\n",
+    "\n",
+    "#variable declaration\n",
+    "cnv= 180/pi\n",
+    "F1=float(400)                         #all forces are in newtons,'N'\n",
+    "F2=float(260)\n",
+    "R=float(520)\n",
+    "\n",
+    "#calculations\n",
+    "\n",
+    "theta=acos((pow(R,2)-pow(F1,2)-pow(F2,2))/(2*F1*F2))*cnv\n",
+    "\n",
+    "alpha=asin(F2*sin(theta*pi/180)/R)*cnv\n",
+    "\n",
+    "print\"theta=\",round(theta,2),\"°\"\n",
+    "print \"alpha=\",round(alpha,2),\"°\"\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# example 1.7 Page number 13\n",
+    "\n",
+    "#The force of 3000 N acts along line AB. Let AB make angle alpha with horizontal.\n",
+    "\n",
+    "from math import cos,sin,pi,asin,acos\n",
+    "\n",
+    "#variable declaration\n",
+    "F=3000                        #force in newtons,'N'\n",
+    "BC=80                         #length of crank BC, 'mm'\n",
+    "AB=200                        #length of connecting rod AB ,'mm'\n",
+    "theta=60*pi/180               #angle b/w BC & AC\n",
+    "\n",
+    "#calculations\n",
+    "\n",
+    "alpha=asin(BC*sin(theta)/200)*180/pi\n",
+    "\n",
+    "HC=F*cos(alpha*pi/180)                    #Horizontal component \n",
+    "VC= F*sin(alpha*pi/180)                   #Vertical component \n",
+    "\n",
+    "#Components along and normal to crank\n",
+    "#The force makes angle alpha + 60  with crank.\n",
+    "alpha2=alpha+60\n",
+    "CAC=F*cos(alpha2*pi/180)             # Component along crank \n",
+    "CNC= F*sin(alpha2*pi/180)             #Component normal to crank \n",
+    "\n",
+    "\n",
+    "print \"horizontal component=\",round(HC,1),\"N\"\n",
+    "print \"Vertical component = \",round(VC,1),\"N\"\n",
+    "print \"Component along crank =\",round(CAC,1),\"N\"\n",
+    "print \"Component normal to crank=\",round(CNC,1),\"N\""
+   ]
+  }
+ ],
+ "metadata": {
+  "anaconda-cloud": {},
+  "kernelspec": {
+   "display_name": "Python [Root]",
+   "language": "python",
+   "name": "Python [Root]"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}