Challenge Question

1
Challenge Question Hubble Law
The graph to the right shows the results of a
1996 experiment to measure the velocity of
galaxies vs. distance from us. The distance unit
on the x-axis is a Mega-parsec (Mpc).

• What are the units for the slope of this line?
• Using the conversion 1 Mpc 3.09 x 1022 km,
  calculate the slope in units of 1/s.

http//www.astro.ucla.edu/wright/cosmo_01.htm