1. Hubble Constant

Using the Hubble constant as shown to work calculations in the chapter,

1. Calculate the velocity that a galaxy is moving away from us if it is 300Mpc away?
2. Calculate the velocity that a galaxy is moving away from us if it is 200Mpc away?
3. Microwave Energy Maps
   1. Explain the significance of the microwave energy maps of the universe, such as the one produced by WMAP shown on page 338.
   2. How did these microwaves originate?
   3. Does the map show that the radiation is uniform? Explain the significance.