longer than the length of r

Q: When was universe was created

A: Big Bang theory: This give the information about how universe began. According to Big Bang theory "…

Q: Explain the term light years?

A: A light year is a unit used to measure very long distances like the distance between galaxies or…

Q: Recall that Hubble’s Law is given by V=HR; this means that H has units of inverse seconds (1/sec).…

A:

Q: "The Big Bang" pg. 165, question 2 In Diagram A, is the universe becoming bigger, smaller, or…

A: Universe is expanding all the time since the big bang.

Q: Explain why is it reasonable for them to believe that the earth was the center of the universe.

A: Explain why is it reasonable for them to believe that the earth was the center of the universe.

Q: Using a single dimensional equation, estimate the number of steps it would take a person with a step…

A: Given data: -  The step length of a person is l = 2.65 ft. The distance of Alpha Centauri from the…

Q: Contra Parmenides and a previously universally accepted idea, at the end of his life, Stephen…

A: In this question we have to select the argument made by Stephen Hawking.

Q: Light travels at a rate of approximately 186,000 miles per second. A light-year is the distance…

A:

Q: Scientific models are often built in stages or layers, starting with a single idea. Which idea…

A: The Big Bang is a cosmological model of the observable universe that describes how the cosmos…

Q: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…

A:

Q: 2. Using your average Hubble's constant, calculate the age of the Universe. For this, first, we use…

A: Given: Hubble constant H=71 [km/sMparsec] According to Hubble`s law, it was found that the galaxies…

Q: how everything in the universe come to exist?   list the different theories on the origin of the…

A:

Q: ccording to modern science, the age of the universe is about         a. 6,000 years   b.  14…

A: Question asked : Age of the universe, according to the modern science

Q: If our universe is expanding, what are the implications for the separation between two stars within…

A: C. The distance between the two stars is unaffected

Q: The distance of a galaxy is of the order of 1025 m. Calculate the order of magnitude of time taken…

A: Given: The distance of the galaxy is 1025 m. Introduction: The light travels at a speed of 3×108 m/s…

Q: If the speed of light is given as 299,792,458 meters per second and the wavelength is 659 nm. What…

A: The frequency of light is given by f=cλ

Q: How manyy microns make up 1.0km. What fraction of a centimeter equals to 1 micron How many microns…

A:

Q: The age of the universe is thought to be about 14 billion years. Part A Assuming two significant…

A:

Q: How can physics help us gain a greater understanding of the interconnected ness of everything in the…

A: The ness interconnection of the universe can be understand with the help of physics. The physics…

Q: Write the exponential form of the following: 5. 4670000000 6. 0.000893 7. 344500 8. 230000

A:

Q: In the movie Interstellar, the main characters are on a planet where 1 hour = 7 years on Earth. If…

A:

Q: If the Hubble constant equals 70 km/s/Mpc, the age of the universe roughly equals   a. 6 billion…

A: Given:Hubble's constant H=70km/s/MpcTo find:Age of universe=??

Q: Despite its age, the size of the universe by diameter is the following: a) 13.8 x 10^9 ly  b) 10 x…

A: The age of the universe is considered to be 13.7 billion years. A light-year is a unit of distance.…

Q: Convert the following Decimal number (2356.223) to Hexadecimal O 1675CF7 O ABFD223 O 856663AB O…

A: Write the given value of this problem. Decimal number=2356.223

Q: Astronomers frequently say that “there are more stars in the universe than there are grains of sand…

A:

Q: Recent findings in astrophysics suggest that the observable universe can be modeled as a sphere of…

A: It is given that,

Q: How many atomic nuclei (diameter = 1 × 10¬1 cm) would it take to stretch from one end of the known…

A: diameter of atomic nuclei (d) = 10-13 cm = 10-15 m distance of one end of universe to its other end…

Q: 4 2.

A:

Q: What is spacetime? Explain in most simplest way with illustration. Like using a garter as an example

A:

Q: What is the distance in light years (ly) to Alkaid? 12 ly 104 ly 55 ly 4 ly

A:

Q: hoose a unit distance in cm that would easily fit on a piece of paper. Let this be your scale…

A:

Q: Make a web search and explain in your own words a method to measure distances in universe.

A: There are different methods to measure distances in universe.

Q: Can something be created from nothing? expound your answer/reasoning.

A: Earlier it was a very well established fact that mass of the universe is conserved i.e. The total…

Q: What is the speed of light? Is it constant all over the universe?

A: The value of speed of light is,

Q: How big is the universe

A: As of now the observable universe is about 13.7 billion light years across and it is expanding at…

Q: Is the concept of Big Bang already a perfect scientific theory to explain the existence of the…

A: Astronomers use the term "big bang" to describe how the cosmos began. It is the concept that the…

Q: How do we write one hundred nano- (100 times one-billionth)? 102 ✕ 10−9 = 10   We write ten…

A: One hundred milli- 102×10-3=10(2-3)=10-1=0.1 One hundred micro- 102×10-6=10(2-6)=10-4=0.0001 Ten…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.