Ask a New Question
Search
Questions and answers by
I need Help (Guidance)
Questions (3)
OPTICS: URGENT QUESTION-- DETAILS PLEASE
What's the paraxial approximation, in spherical mirrors? start from the equation
1 answer
379 views
The calcium II K line has a rest wavelength of l0 = 393.36 nm. You observed this line in the spectrum of a galaxy, and found
1 answer
364 views
1. What objects Hershel and Shapley, respectively, used to map the Galaxy? What were their results and why did they come up with
2 answers
329 views
Answers (1)
Thank you!
