Problem Set 4Astronomy 3Professor BlitzDue: Friday May 2, 20141)Explain in your own words how we know that the Perfect CosmologicalPrinciple doesn’t apply to the Universe?2)Why does the Universe become transparent to radiation at the epoch ofrecombination?3)What is the frequency of a photon whose energy is the same as the restmass of a proton? What portion of the electromagnetic spectrum is this?You’ll have to look up the mass of an electron.4)The Cosmic Microwave Background has a temperature of 2.735 K. What isthe wavelength of the radiation at which most of its radiation is emitted?Show your work.5)The Hubble constant today has a value of 72 km s-1 Mpc-1. What is thevalue of the Hubble constant in s-1?
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more