The hubble constant measures the expansion of the universe and is currently measured at 33 km/s/Mly. How old is the universe?
The hubble constant measures the expansion of the universe and is currently measured at 33 km/s/Mly....
Suppose that the Hubble constant had a value of H = 150 km/s/Mpc. What would be the age of the universe? What if H had a value of 30 km/s/Mpc?
Why are the Hubble Constant, the Cosmological Constant, and the density parameter so important to cosmology and to you? Consider expansion rate and age. What would be different about our universe if the Hubble Constant were doubled from its current value? How do these constants factor into the geometry of spacetime? How have these constants changed throughout the lifetime of the universe? Are they still changing? Cite some evidence to support your claims.
Why are the Hubble Constant, the Cosmological Constant, and the density parameter so important to cosmology and to you? Consider expansion rate and age. What would be different about our universe if the Hubble Constant were doubled from its current value? How do these constants factor into the geometry of spacetime? How have these constants changed throughout the lifetime of the universe? Are they still changing? Cite some evidence to support your claims. Please type answer, last persons handwriting was...
The Hubble Parameter The constant describing the rate of this recession, called the Hubble parameterHubble parameterA measure of the rate of expansion of the universe, which is the average value of the velocity of recession divided by distance: about 70 km/s/megaparsec. Hubble parameter A measure of the rate of expansion of the universe, which is the average value of the velocity of recession divided by distance: about 70 km/s/megaparsec. , is used to determine the age and size of the...
What will the Hubble parameter be 10 billion years from now for (a) a universe with H_0 = 70 km/sec/Mpc, and critical density in matter and (b) the Universe we think we live in, which has matter density of about 0.3 of critical density, and cosmological constant of 0.7 of critical density, and a Hubble constant of 70 km/sec/Mpc?
What have scientists discovered about the expansion of the Universe? The expansion is currently slowing down and will eventually turn into a contraction. is currently speeding up but only close to our galaxy. Farther away the Universe contracts. proceeds with constant speed. is currently slowing down and will not turn into a contraction. is currently speeding up.
The expansion rate of the Universe is usually given as something like 70 km s−1 Mpc−1. If you convert this quantity to SI base units of kg, m, s, what is this number and in what units? What do you think this means for the age of the Universe? Give an estimate for the age of the Universe, in s and in billions of years.
The Hubble Constant, the density of the universe, and the cosmological constant are all vital to the evolution of our universe. Briefly discuss why each is so important -and- what would happen if we tweaked each one up or down a little. Are there other constants that are equally important? If so, which and why?
Question 14 I need help on 500KM O PARSECS FIGURE 1 Velocity-Distance Relation among Extra-Galactic Nebulae. 13. [3pt] Approximately what value of the Hubble Constant would you infer from this graph? (answer in km/s/Mpc) Correct, computer gets: 500 14. [3pt] What is the approximate age of the universe indicated by this (very wrong) value of the Hubble Constant? (answer in years) 500KM O PARSECS FIGURE 1 Velocity-Distance Relation among Extra-Galactic Nebulae. 13. [3pt] Approximately what value of the Hubble Constant...
a) A galaxy cluster has a recessional velocity of 44,000 km/s. Using the best estimate for Hubble's constant, find the distance to the galaxy cluster. ____________ Mpc b) Suppose the Hubble constant had a value of H= 145 km/s/Mpc. What would be the age of the universe? __________ billion years c) What if H had a value of 35 km/s/Mpc? ____________ billion years