1. Invent a situation in which a photon undergoes a combination of Doppler, gravitational, and cosmological effects, causing a very large redshift when the photor ends its journey by arriving at the Earth. [10 points] 2. Using the Hubble Constant Ho=71 km/s/Mpc, calculate the recession speed of a galaxy located 50 Mpc away. At this speed, by what percentage will the galaxy's distance change over the course of one day? Note that 1 Mpc = 3.09 x 1019 km [10 points] ==