Homework Statement
Consider the following macroscopic oscillator: Two masses of equal mass are attached to a spring and oscillate with amplitude A at frequency v. Use classical physics to calculate the energy of the oscillator.
Homework Equations
The Attempt at a Solution
This...
I am trying to prove that 11 is a prime in \mathbb{Z}[\sqrt{-5}].
I noticed that \mathbb{Z}[\sqrt{-5}] is not a UFD so I cannot show that it is irreducible then conclude it is prime.
I know that that an ideal is prime if and only if the quotient ring is a domain.
I was wondering if it is...