Question

Inflation (a) What is the cosmic epoch of inflation in the early universe? How is this...

Inflation

(a) What is the cosmic epoch of inflation in the early universe? How is this different from the usual expansion of the universe?

(b) What similarities and differences are there between inflation and dark energy?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Just as the Universe has a cosmic microwave background dating back to the time when the...
Just as the Universe has a cosmic microwave background dating back to the time when the Universe was opaque to photons, it has a cosmic neutrino background dating back to the earlier time when the Universe was opaque to neutrinos. The calculated number density of cosmic neutrinos is nν = 3.36 × 108 m-3. (a) How many cosmic neutrinos are inside (and streaming through) the Earth at any given moment? (b) What average neutrino mass, mν, would be required to...
Thermodynamics problem: What is the entropy of Cosmic Microwave Background CMB today in the visible Universe?
Thermodynamics problem: What is the entropy of Cosmic Microwave Background CMB today in the visible Universe?
1. Cosmic Inventory. What are the three largest contributors to the density of the universe today?...
1. Cosmic Inventory. What are the three largest contributors to the density of the universe today? What fraction of the cosmos today is made of material that has been studied in a laboratory? Briefly comment on this result.
Considering only the radiation term, solve the Friedmann equation for the early universe. What was the...
Considering only the radiation term, solve the Friedmann equation for the early universe. What was the age of the universe at the transition between the radiation and matter dominated epochs?
Can I have this question corrected. Please edit if you think of better responses.. thank you!...
Can I have this question corrected. Please edit if you think of better responses.. thank you! (i) Briefly describe two types of observations that support the existence of dark matter. Warping of spacetime due to presence of invisible matter. (Gravitational lensing) Observing flat rotation curve of galaxy (ii) What are two differences between dark matter and dark energy? DE makes up approximately 70% of universe whereas DM 25% DE causes universe to expand whereas DM just exisits and does not...
1. Dark Energy (a) How can we test whether our universe has a cosmological constant? (b)...
1. Dark Energy (a) How can we test whether our universe has a cosmological constant? (b) What would it mean if a cosmological constant can explain the acceleration of the universe? What question(s) would that raise? (c) What would it mean if a cosmological constant cannot explain the acceleration of the universe? What question(s) would that raise?
1. Dark Energy (a) How can we test whether our universe has a cosmological constant? (b)...
1. Dark Energy (a) How can we test whether our universe has a cosmological constant? (b) What would it mean if a cosmological constant can explain the acceleration of the universe? What question(s) would that raise? (c) What would it mean if a cosmological constant cannot explain the acceleration of the universe? What question(s) would that raise?
Multiple Answers can be correct. 1. According to the Big Bang Theory: A.the Universe is about...
Multiple Answers can be correct. 1. According to the Big Bang Theory: A.the Universe is about 13.7 billion years old. B. the 2.7 degree cosmic background radiation (CBR) is a remnant of all of the supernovae that have occurred since creation. C. the farther away things are the faster they should appear to be moving away from us. D. the universe is presently expanding. E. at the earliest times the universe was filled with equal numbers of all "elementary" particles...
Assuming that the universe currently is well described by a density parameter Ω0 = 1, there...
Assuming that the universe currently is well described by a density parameter Ω0 = 1, there is no dark energy and the current temperature of the universe is 2.73 K, compute how long from the present it will take for the universe to cool down by 0.2 K. Remember that the temperature of the universe is inversely proportional to its radius (the scale factor).
Expansion of the universe Q: What is the Cosmological Principle? Why is it not an exact...
Expansion of the universe Q: What is the Cosmological Principle? Why is it not an exact statement? In what sense could it be true (on large scales a good approximation)? Q: What is Hubble’s Law? What does it say in simple terms? What is the pattern of galaxy motions relative to us? What are possible interpretations of this motion? Q: What is the cosmic scale factor? What does it measure? What is its value today? in the past? the future?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT