sweaversw9584 sweaversw9584
  • 21-12-2022
  • Physics
contestada

what would be the wavelength of the 21-cm-line if it was coming from a distance of 8,000,000,000 (8*10^9) light-years? 42 cm 63 cm 21 cm 84 cm

Respuesta :

Otras preguntas

LaDonna is overweight and loves fast food which is the best diet for LaDonna to adopt
Help. A.S.A.P! Which is an example of Self-Management? 1. ) Using Social Media 2.) Tracking personal Finances 3.) Going on a strict diet 4.) Learning first ai
What was the advantage of using transistors instead of vacuum tubes in the second-generation computers? A. Computers were drastically reduced in size. B. Comp
what is tge speed of sound in dry air at 0°C
. Aluminum metal reacts with zinc(II) ion in an aqueous solution by the following half-cell reactions: Al(s) → Al3+(aq) + 3e− Zn2+(aq) + 2e− → Zn(s) a. Predict
I REALLY NEED YOUR HELP PLEASE!!!!!!!
To meet personal health goals, which step involves recognizing a health problem? A. setting goals B. building skills C. gaining awareness D. making decisions
8 thank you so much!!!
OMMGG PLEASE HELP I NEED IT WHAT IS X ?
What was the purpose of the Kellogg-Briand Pact? To oppose the spread of communist ideology to promote free trade between nations of the world to end war as an