what are the condition for the universe to reverse expansion and becomes a contraction .
what are the condition for the universe to reverse expansion and becomes a contraction .
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.
Multiple Choice Question only. No Long answers. What condition is necessary for the universe to be closed? The universe must have no mass in it. The density of the universe must be large. The density of the universe must be small. The cosmological constant must be large.
what is the difference between expansion joint , contraction joint ,flexible joint and construction joint ?
Does the expansion of the universe make the Sun bigger? What about the Milky Way? Why or why not?
Forecast what you see as the future of labor arbitration in terms of the expansion or contraction of issues within its jurisdictions and the finality of its decisions.
(* In class I discussed the expansion of the universe and gave the formula 8тG Н2! where H is the expansion rate, G is Newton's gravitational constant, and p is the density of energy. Based on this equation, argue that that there was a point in the past when the density was infinite (this is the Big Bang). I am looking for a qualitative argument. To give such an argument, think about what expansion rate means, what energy density means...
The hubble constant measures the expansion of the universe and is currently measured at 33 km/s/Mly. How old is the universe?
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.
If a voltaic cell reaction is written in reverse, the a. E° becomes positive b. ∆G° becomes positive c. reaction becomes spontaneous d. E° becomes zero
The Poisson’s ratio links the lateral contraction of a material to the axial expansion when it is loaded in uniaxial tension. Typical value of the Poisson’s ratio for a solid, fully dense material ranges between 0.2 and 0.5. What would be the value range in case the material was loaded in compression ? Explain your answer !!!