NS 102 Midterm: NATSCI 102 Test1A_2010_soln

• School: University of Arizona
• Department: Naval Science
• Course: NS 102
• Professor: All

Document Summary

Be sure to write your name and student id number on the first blank at the bottom of the form. Please mark the version (a) in the key id space at the top of the scantron. If you know the wavelength of a photon, you can d o i r e. 3 times further away from us than star a. What are the relative brightnesses of these two stars? a. Star a is two times fainter than star b b. Star b is two times fainter than star a c. star a is four times fainter than star b d. star b is four times fainter than star a e. the stars appear equally bright. Orbital distance (au: at dawn, close to midnight, at dusk, either a. ) or b. , could have been any time at night b. 5. 83 x 10-2 c. 5. 83 x 10-5 d. 5. 83 x 10-4 e. 5. 83 x 10-3: 5. 83 x 100.