I have the correct answer for part a, I need part B and C. I tried 0.475 and 0.4

Question

I have the correct answer for part a, I need part B and C. I tried 0.475 and 0.416 for part B and they were both incorrect. I used 0.475 for part c, also incorrect. You will need to take the log of each value before using linear regression to find the slope for each exercise. For all three exercises, the angular frequency (omega) is the dependent variable (y) and force, mass, and radius are the independent variables (x). Exercise 1 Omega vs Centripetal force Omega,Centripetal force 5.28,1.32 8.14,3.38 8.60,3.97 10.0,5.30 11.1,6.62 pa Exercise 2 Omega vs Mass Omega,Mass 4.72,0.225 3.95,0.345 3.38,0.505 3.32,0.525 3.08,0.625 Exercise 3 -Omega vs Radius Omega,Radius 8.70,0.100 7.36,0.140 6.39,0.180 4.91,0.280 5.19,0.260

Explanation / Answer

part b---   w = k Mb    

         dw/dM = k b M(b-1)

                             = 2.6 * (-0.42) (0.225)-0.58

                      = -2.594

part c     w = k rb    

                dw/dr = k b r(b-1)

                              = 2.894 (-0.478) (0.1)-1.478

                             = -41.584

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