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Diffstat (limited to '3845/CH24/EX24.3/Ex24_3.sce')
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1 files changed, 19 insertions, 0 deletions
diff --git a/3845/CH24/EX24.3/Ex24_3.sce b/3845/CH24/EX24.3/Ex24_3.sce new file mode 100644 index 000000000..979530a48 --- /dev/null +++ b/3845/CH24/EX24.3/Ex24_3.sce @@ -0,0 +1,19 @@ +//Example 24.3
+rho=1000;//Density of tissue (kg/m^3)
+d=0.8*10^-3;//Diameter of cornea (m)
+A=%pi*d^2/4;//Area (m^2)
+t=0.3*10^-6;//Thickness (m)
+V=A*t;//Volume of tissue (m^3)
+m=rho*V;//Mass of tissue evaporated (kg)
+c=4186;//Specific heat of water (J/kg/K)
+delta_T=100-34;//Change in temperature (C)
+L_v=2256*10^3;//Latent heat of vaporization of water (J/kg)
+Q_tot=m*(c*delta_T+L_v);//Energy absorbed (J)
+printf('Total energy absorbed by the tissue = %0.0f*10^-9 kJ',Q_tot/1000/10^-9)
+printf('\nDiscussion:')
+ave_pow=Q_tot*400;//Average power if there are 400 bursts per second (W)
+printf('\nAverage power if there are 400 laser bursts per second = %0.1f mW',ave_pow*1000)
+//Answer varies due to round off error
+//Openstax - College Physics
+//Download for free at http://cnx.org/content/col11406/latest
+
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