Announcements. Scores from the fourth exam are available on WebCT. Final exam is Monday, May 9, at 7:30 am. Students with last names A-K go to 225 CB. Students with last names L-Z go to 300 CB. All students must bring their ID. Iowa Book and Supply will buy back textbooks and PRS units.
distance = velocity time velocity = 0.5 cm/s
time = distance / velocity = 3 cm/(0.5 cm/s) = 6 s
= 500 km/s
= 0.508 Mpc/Gyr
When were galaxies in the same place?
time = distance / velocity = 7 Mpc/(0.508 Mpc/Gyr)
= 13.8 Gyr ago
Time = distance/velocity
= 1/(71 km/s/Mpc)
= 13.8 Gyr
: north/south and east/west
= 3.1415926… 2 = 6.28…
How do the properties of positively curved space differ from flat space?