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The current value of the cosmological constant in the universe is estimated to be around 10-29 g/cm3.

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3mo ago

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What is cosmological constant?

The cosmological constant, denoted by the Greek letter Lambda (Λ), is a term introduced by Albert Einstein in his equations of general relativity to account for a static universe. It represents a form of energy density that fills space homogeneously and has a repulsive effect, counteracting the gravitational pull of matter. In modern cosmology, it is associated with dark energy, which is thought to drive the accelerated expansion of the universe. The value of the cosmological constant is crucial in understanding the universe's fate and its large-scale structure.


When can the value of cosmological constant become zero?

A zero graph


Why the age of the universe equals 66.6 percent of hubble time?

As far as I understand, the projected age of the universe is about 99.5% of the estimated "Hubble time". The age is projected by applying a correction factor to the inverse Hubble constant. The correction factor applied depends on the value of the cosmological constant. The constant is derived from WMAP observation data, and valued at 0.976. For a flat universe without cosmological constant, the value would have been 0.666, resulting in a projected age 66.6% of the Hubble time.


What is the current accepted Hubble constant value in cosmology?

Oh- what a beautiful question! The current accepted Hubble constant value in cosmology is around 74 kilometers per second per megaparsec. It represents the rate at which the universe is expanding- just like adding brushstrokes to a scenic canvas, giving depth and dimension to our understanding of the cosmos.


What is the rate of acceleration of the Universe?

The rate of acceleration of the universe is determined by the cosmological constant, also known as dark energy. This acceleration is causing the universe to expand at an accelerating rate, leading to an increase in the distance between galaxies over time. The exact value of this acceleration is currently estimated to be around 73 kilometers per second per megaparsec.


Value of g in universe?

I think that g (the gravitational constant) varies dependent on your proximity to other massive bodies. For example the value of g on the moon is less than the value of g on earth. It is not constant throughout the universe.


Does the gravitational constant change over time or is it a constant value?

The gravitational constant, denoted as G, is considered to be a constant value in physics. It is a fundamental constant that is believed to remain the same over time and across the universe.


What is the significance of Hubble's constant value in determining the rate of expansion of the universe?

The Hubble constant value is important in determining the rate at which the universe is expanding. It helps scientists understand how fast galaxies are moving away from each other and how the universe is evolving over time.


What is the value of amperes for 100 volts at constant resistance?

V = I*R, so take 100 volts and divide it by the value of the resistance to get the current. Current is measured in amperes.


What is ac current and DC current?

AC: Alternating CurrentThe current oscillates cyclically between a maximum and an minimum.DC: Direct CurrentThis is fixed. The current is always at a constant value.


What happens if voltage is constant and current is varying when an scr triggers?

Even if the current is varying,as long as the current reaches the value required to trigger the SCR, it will snap into operation. The SCR will remain in operation until the current through it drops to a value below the holding current.


What are two constants in the universe?

The speed of light, denoted as "c" in physics, is a constant in the universe, with a value of approximately 3.00 x 10^8 meters per second. Another constant is the gravitational constant, denoted as "G", which represents the strength of the gravitational force between two objects and has a value of approximately 6.67 x 10^-11 cubic meters per kilogram per second squared.