APPENDIX B/ LAMPIRAN B TABLE B.I Properties of Water Kinematic Bulk Surface tension Vapor pressure P. (kPa) Temperature Density Viscosity viscosity modulus (kg/m') (N-sm²) B (Pa) (m²/s) (N/m) 1.792 x 10 1.519 1.792 x 10 1.519 1.308 1.141 1.007 0.804 0.661 0.556 0.477 204 x 10 206 999.9 0.0762 0.610 5 1000.0 999.7 0.0754 0.0748 0.0741 0.0736 0.0718 0.0701 0.0682 0.872 1.13 1.60 2.34 4.24 3.38 12.3 19.9 10 1.308 211 15 999.1 1.140 1.005 0.801 0.656 0.549 0.469 214 20 998.2 220 30 995.7 992.2 988.1 983.2 223 227 230 228 40 50 60 0.0668 70 977.8 0.406 0.415 0.0650 31.2 225 80 971.8 0.357 0.367 0.0630 0.0612 0.0594 47.3 221 965.3 958.4 90 0.317 0.328 70.1 216 0.284 x 10 0.296 x 10 101.3 207 x 10 100 TABLE B.2 Properties of Air at Atmospheric Pressure Kinematic viscosity Velocity of sound Temperature Density Viscosity ("C) (kg/m") (N-s/m³) (m³/s) (m/s) 1.46 x 10 1.56 1.61 0.921 x 10-5 1.08 x 10- 1.582 299 312 -50 -30 1.452 -20 1.394 1.16 319 -10 1.342 1.67 1.24 1.33 1.42 1.51 325 1.292 1.72 331 1.247 1.204 337 343 349 355 360 366 10 20 30 1.76 1.81 1.164 1.127 1.092 1.86 1.91 1.95 1.60 1.69 1.79 40 50 60 1.060 2.00 1.89 70 1.030 2.05 1.99 371 80 1.000 2.09 2.09 2 19 377 90 0973 213 382

please show steps with explanation of the formulas and  calculs for more understanding. Thank you!

Q) The velocity v (m/s) of air flowing past a flat surface is measured at several distances y(m) away from the surface. Use Newton'sviscosity law to determine the shear stress t (N/m³) at the surface (y=0). dv 'dy Assume a value of dynamic viscosity =1.8* 10- N.s/hm² y, m V, m/s 0.002 0.287 0.006 0.899 0.012 |1.915 0.018 3.048 0.024 4.299 (r-7) Use two forward đifference approximations for h=0.006. Estimate the approximate percent relative error, &. b- , (t=?) Use two forward difference approximations with a step size of 0.012 (h=0.012). Estimate the approximatepercent relative error, , e.. (r-?) ApplyRichardson extrapolation. Estimate the approximate percent relative error, & (r=?) Use unequally spaced three data and the first-derivative of a second-order d- Langrange polynomial to evaluate the derivative (y=0) and shear stress. Estimate the approximate percent relative error, Eg Compare the approximate estimates of the error ([ed ) for the formulas used.