Ch. 1 Homework, Phy 131, Fall 1997, Tulane

1.4   (a) [C1] = m, [C2] = m/s    (b) and (c)  [C1] = m/s^2
      (d) [C1] = m, [C2] = 1/s    (e) [C1] = m/s, [C2] = 1/s

1.9   1 mile/hr = 1.61 km/hr

1.16  [G] = m^3/(kg s^2)

1.19  (a) 30,000   (b) 0.0062   (c) 0.000004   (d) 217,000

1.27  D = 3.6 x 10^6 m

1.28  (a) 1 AU = 4.8 x 10^-6 parsec
      (b) 1 parsec = 3.1 x 10^16 m
      (c) 1 lightyear = 9.4 x 10^15 m
      (d) 1 lightyear = 63,000 AU
      (e) 1 parsec = 3.3 lightyears

1.32  (a) 7,000 electrons   (b) about 4 protons

1.35 (optional)  (a) n = 1/2, C= 1.8 s/sqrt(kg)  (b) (m,T)=(0.4, 1.05) pair

1.37 (optional)  (a) T = C sqrt(L/g)
                 (b) Assume L=1m, T=2s
                            L=0.5m, T=1.4s
                 (c) C = 6.2 with the above assumption

1.41 (optional)  (a) 800 megabits
                 (b) a few hundred books.