I am having trouble showing that the baryon to photon ratio is η= nb/nγ ~ 2.7x10-8Ωbh2 where nb and nγ are the number density of baryons and photons respectively, Ωb is the baryon...
I am having trouble showing that the baryon to photon ratio is η= nb/nγ ~ 2.7x10-8Ωbh2 where nb and nγ are the number density of baryons and photons respectively, Ωb is the baryon...
if a car traveling at constant speed goes 70 miles in 2 hours, how far will it go in 24 hours
In what order are the planets from the sun
I am stuck on this one question on my science homework, and I would like to know how to answer it so I can be ready for a quiz, too. Please help. Suppose a comet passes the sun every...
I wanna ask about Astronomy! If Space is really elastic kind of, and the Gravitation pull of planets is due to the bend they cause because of their mass in Space, would it be true...
Stellar Evolution
and have examples of how the sun physically moves matter and how the sun chemically moves matter
If the mass of the second object is very small compared with the first mass, then, to a good approximation, P2 = a3 / M1. Solving for the mass, we get M1 = a3 / p2 . Use this mass formula to...
( A) RIGEL'S SURFACE IS COOLER THAN BETELGEUSE'S SURFACE . ( B ) BETELGEUSE'S SURFACE IS COOLER THAN RIGEL'S SURFACE . ( C ) BETELGEUSE'S AND RIGEL 'S SURFACES ARE THE SAME TEMPERATURE . ( D ) THE...
(A) THERE ARE ABSOLUTELY NO ICES TO BE FOUND IN THE OUTER SOLAR SYSTEM .(B) ROCKY MATERIAL IS NOT FOUND IN THE INNER SOLAR SYSTEM ( C ) VOLATILE MATERIAL IS PERFECTLY EVENLY DISTRIBUTED THROUGHOUT...
(A) JUPITER WAS NOT ABLE TO COLLECT ANY HELIUM GAS . (B) MERCURY HAS THE MOST MASSIVE ATMOSPHERE OF ANY PLANET IN THE SOLAR SYSTEM ( C ) JUPITER'S GRAVITY ENABLED IT TO COLLECT A VERY MASSIVE GASEOUS...
HOW CAN THIS BE EXPLAINED ?
I WANT TO SEE IT SO BAD
I am stuck on this question. Can you please help me.
EXPLANATION AS TO EXACTLY WHAT HAPPENS AROUND THAT TIME
Can a tutor please help me answer this question showing all the possible calculations for this question need so as to me having a cleare idea on how to answer questions like these next time i come...
What happened??
need help to calculate the answer for this question by showing all the necessary calculations involved for this problem listed
CAN SOMEONE PLEASE HELP ME CALCULATE THE ANSWER TO THAT QUESTION SHOWING ALL THE POSSIBLE CALCULATIONS AND WORKINGS FOR THE QUESTION
If you look straight up and see the stars moving in circles centered directly overhead, what two places can you be on earth?