Answer: The correct answer is : From the period-luminosity relation for Cepheids, he was able to determine the distance to Andromeda and show that it was far outside the Milky Way Galaxy.
Explanation: Hubble's law says that the recession velocity of a galaxy is directly proportional to its distance from us. Hubble measured the distance to the Andromeda galaxy by applying the period-luminosity relationship to Cepheid.
a toy/model steam engine. how it works and how to measure horse power
Answer:
The answer is 5102,91 m.
Explanation:
To find<u> escape velocity</u>:
. Therefore:
Using the necessary informations:
as we solve the equation we find
This describes the change from solid state to gaseous state :this is because as the temperature decreases the molecular forces will equally loose energy