Why was the idea that the universe is eternal and unchanging abandoned?
Q: As the Universe becomes older, what effect will that have on a slope of the Hubble's diagram: It…
A: Doppler effect in light is the change in frequency of light observed by the observer when the source…
Q: why in the pythagorean theorem formula is it "a^2 - b^2" instead of "a^2 + b^2"
A:
Q: What would the universe look like if there was complete cemetery between matter and antimatter?
A: What would the universe look like if there was complete cemetery between matter and antimatter?
Q: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…
A:
Q: So if our universe is about 15 billion years old. Do we think this because we can't see farther away…
A: We are known the age of universe. We are given that age of universe is about 15 billion years. There…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The universe was formed from a big explosion called Big Bang. In the beginning, everything was…
Q: Calculate the age of the universe when its temperature was 10¹¹ K.
A: The universe was once part of a singularity of very high density and temperature. All the forces and…
Q: What is the only thing that remains constant all over the universe
A: A constant is a quantity that is conserved with time. And and Invariant quantity is something that…
Q: About what percentage of the universe is believed to be composed of normal matter? O 5% O > 22% O…
A: 68% of the matter is dark energy. 27% of the matter is dark matter. Rest less or equal to 5% is…
Q: Hubble's Law Constant provides the following information about the observable universe: galaxies…
A: Hubble's law constant, often denoted as H₀ provides an estimate of the current rate of expansion of…
Q: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
A: When the universe was approximately one second old its size grew by a factor of 10 to the power of…
Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…
A: Here we arrange these things on the bases of their size in increasing order.
Q: Which of the following lists in order from smallest to largest? O universe --> solar system -->…
A:
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The evidence of the uniform nature is explained by particle physics. Before the formation of the…
Q: What is the Big Bang? What evidence do we see in the Universe that everything-which-exists exploded…
A: Bigbang - It is presumably more like a balloon being gust up. A balloon begins small and dilates…
Q: why is it reasonable to suspect that travel between stars is nearly impossible?
A: Somethings are impossible because they violate fundamental laws of nature. Today, we belive that…
Q: Why do we think that nothing, other than light, can travel faster than the speed of light?
A: According to the Einstein’s theory of relativity nothing can travel faster than light.
Q: Calculate the age of the universe when the temperature was 10¹ K.
A: The age of the universe when the temperature was 1013 K. Given, TemperatureT=1013 K
Q: What is the twin paradox?
A: the twin paradox is a thought experiment in special relativity involving identical twins, one of…
Q: What is the concept of dark matter, and what evidence suggests its existence?
A: Introduction:The predictions of the general theory of relativity fall short in explaining the…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Choose the BEST answer to the following: If a star that is 20 light-years from Earth explodes, gravitational waves from the explosion would reach Earth in (a) less than 20 years. (b) 20 years. (c) more than 20 years. (d) None of these.In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)Place all of the following in order from earliest to the most recent: Dark energy begins acceleration of the expansion of the universe You study for your final in astronomy Last scattering of the Cosmic Microwave Background Radiation First stars and galaxies form Big Bang Universe becomes transparent (no longer opaque) aka photon decoupling time Inflationary Epoch Formation of first complex elements (hydrogen isotopes, helium & lithium)
- If Jim could drive a Jetson's flying car at a constant speed of 330 km/hr across oceans and space, approximately how long (in millions of years, in 106 years) would he take to drive to a nearby star that is 8.7 light-years away? Use 9.461 × 1012 km/light-year and 8766 hours per year (365.25 days).The presence of dark energy affects to the way the Universe is expanding. Select one: True FalseAn astronomical unit (AU) is defined as the average distance between the solar system and Alpha Centauri the Earth and the Moon the Milky Way Galaxy and the Andromeda Galaxy the Earth and the Sun