38. Consider a harmonic oscillator withm = 1,k = 2,and b = 1. (a) What is the natural period? (b) If m is increased slightly, does the natural period increase or decrease? How fast does it increase or decrease? (c) If k is increased slightly, does the natural period increase or decrease? How fast does it increase or decrease? (d) If b is increased slightly, does the natural period increase or decrease? How fast does it increase or decrease