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diff --git a/sample_notebooks/MohdAsif/Chapter5.ipynb b/sample_notebooks/MohdAsif/Chapter5.ipynb new file mode 100755 index 00000000..e36093b9 --- /dev/null +++ b/sample_notebooks/MohdAsif/Chapter5.ipynb @@ -0,0 +1,247 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:abf9f7aa50395283288e62f0f85bd91bae92b4155380f5c281c2602a3861ceb7" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter - 5 Wave Motion and speed" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1, page : 115" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import pi\n", + "#frequency\n", + "r=3 #m\n", + "w=10 #s**-1\n", + "vs=r*w #m/s\n", + "A=6 #m\n", + "fd=5/pi #s**-1\n", + "vmax=A*2*pi*fd #m/s\n", + "v=330 #m/s\n", + "n=340 #Hz\n", + "nmax=((v+vmax)/(v-vs))*n #Hz\n", + "nmin=((v-vmax)/(v+vs))*n #Hz\n", + "print \"Maximum frequency is \",nmax,\" Hz\"\n", + "print \"Minimum frequency is \",nmin,\" Hz\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Maximum frequency is 442.0 Hz\n", + "Minimum frequency is 255.0 Hz\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2, page : 118" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "# frequency\n", + "#given data :\n", + "N=400 #hZ\n", + "V=340 #M/S\n", + "VS=60 #M/S\n", + "N2=((V/(V-VS))*N) #Hz\n", + "print \"Frequency when engine is approaching to the listner is \",round(N2,2),\" Hz\"\n", + "N3=((V/(V+VS))*N) #Hz\n", + "print \"Frequency when engine is moving away from the listner is \",round(N3,2),\" Hz\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Frequency when engine is approaching to the listner is 485.71 Hz\n", + "Frequency when engine is moving away from the listner is 340.0 Hz\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 3, page : 120" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "#frequency\n", + "v=1200 #km/h\n", + "w=40 #km/h\n", + "vs=40 #km/h\n", + "n=580 #Hz\n", + "nd=((v+vs)/((v+vs)-vs))*n #Hz\n", + "print \"Frequency of the whistle as heared by an observer on the hill is \",round(nd,2),\" Hz\"\n", + "x=29/30 #km\n", + "x*=1000 #m\n", + "print \"Distance is \",round(x,2),\" m\"\n", + "ndd=((v-w)+vs)/((v-w))*nd #Hz\n", + "print \"Frequency heared by driver is \",round(nd,2),\" Hz\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Frequency of the whistle as heared by an observer on the hill is 599.33 Hz\n", + "Distance is 966.67 m\n", + "Frequency heared by driver is 599.33 Hz\n" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 5, page :125" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "#frequency\n", + "v=340 #m/s\n", + "n=600 #Hz\n", + "vs=36 #km h**-1\n", + "vs1=vs*(1000/3600) #m/s\n", + "apf=((v)/(v-vs1))*n #Hz\n", + "vs2=54 #km h**-1\n", + "vs3=vs2*(1000/3600) #m/s\n", + "apf1=((v)/(v+vs3))*n #Hz\n", + "print \"Two apparent frequencies are \",round(apf,2),\" Hz and \",round(apf1,2),\" Hz\"\n", + "df=apf-apf1 #Hz\n", + "print \"Difference in frequencies is \",round(df,2),\" Hz\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Two apparent frequencies are 618.18 Hz and 574.65 Hz\n", + "Difference in frequencies is 43.53 Hz\n" + ] + } + ], + "prompt_number": 12 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 9, page : 135" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "from math import sqrt, pi\n", + "#foce constant,displacement , acceleration and energy\n", + "x1=.10 # in m\n", + "F1=4 # in N\n", + "K=F1/x1 \n", + "x2=0.12 # in m\n", + "print \"(a) The force constant, K = \",K,\" N/m \"\n", + "F=-K*x2 \n", + "print \"(b) The force, F = \",F, \" N\"\n", + "m=1.6 # in kg\n", + "T=2*pi*sqrt(m/K) \n", + "print \"(c) Period of pscillation, T = \",round(T,2), \" s\"\n", + "A=x2 \n", + "print \"(d) Amplitude of motion,A = \",A, \" m\"\n", + "alfa=A*K/m \n", + "print \"(e) Maximum acceleration,alfa = \",alfa,\" m/s**2\"\n", + "x=A/2 # in m\n", + "w=sqrt(K/m) \n", + "v=w*sqrt(A**2-x**2) \n", + "a=w**2*x # in m/s**2\n", + "KE=(1/2)*m*v**2 # in J\n", + "PE=(1/2)*K*x**2 # in J\n", + "TE=KE+PE \n", + "print \"\"\"(f) velocity is %0.2f m/s\n", + "acceleration %0.2f m/s**2\n", + "Kinetic energy is %0.2f J\n", + "Potential energy is %0.2f J\"\"\" %(v,a,KE,PE)\n", + "print \"(g) Total energy of the oscillating system %0.2f J\" %TE" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "(a) The force constant, K = 40.0 N/m \n", + "(b) The force, F = -4.8 N\n", + "(c) Period of pscillation, T = 1.26 s\n", + "(d) Amplitude of motion,A = 0.12 m\n", + "(e) Maximum acceleration,alfa = 3.0 m/s**2\n", + "(f) velocity is 0.52 m/s\n", + "acceleration 1.50 m/s**2\n", + "Kinetic energy is 0.22 J\n", + "Potential energy is 0.07 J\n", + "(g) Total energy of the oscillating system 0.29 J\n" + ] + } + ], + "prompt_number": 22 + } + ], + "metadata": {} + } + ] +}
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