Dark matter cannot be made from neutrinos. Why is it so?
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which of the following best sums up current scientific thinking about the nature of dark energy?
(a) Most dark matter probably consists of weakly interacting particles of a type that we have not yet identified.
(b) Dark matter consists of 90% of neutrinos and 10% of WIMPs.
(c) There is no longer any doubt that dark matter is made mostly of WIMPs.
(d) Dark matter probably does not really exist, and rather indicates a fundamental problem in our understanding of gravity.
Neutrinos very rarely interact with anything and thus are very hardto detect. About 10^14 neutrinos from the sun pass through yourbody every second, even at midnight (the neutrinos easily gothrough the earth), but this is of no concern since only one a dayinteracts with any quark or lepton in your body. In fact, aneutrino would have to pass through several thousand light years ofsolid lead before it would have a 50-50 chance of being absorbed.Given the information in C1.5, see if you can explain why neutrinosso rarely interact with normal matter.\C1.5 describes interactions (Gravitational, Electromagnetic, Weaknuclear, and strong nuclear), and also includes a table aboutLeptons and Quarks.I was thinking the answer was that Neutrinos don't react withmatter very frequently because they have little to no mass, and nocharge - thus they can only participate in weak nuclearinteractions or gravitational interactions which are extremelyweak.Is this the correct line of thinking?
Which of the following explains best summarizes the dark matter?
The matter that is identified by its gravitational properties only, not by observation through any electromagnetic wave in the spectrum.
The matter found in the darker areas of the universe where nothing can be seen.
The matter, that is made up of black holes
