subject
Physics, 13.07.2019 01:30 toxsicity

Consider propagation of neutrinos (produced in the interaction of cosmic rays with air ) through the earth. what fraction of neutrinos with energy 10 gev will be absorbed when passing through the earth's center. hint: the fraction is very small so you can use the taylor series expan- sion for n )no exp(x) to calculate probability of interaction. to perform the calculation use the particle data book on the web (see syllabus for pointer) to find the plot for neutrino - nucleon cross section. use radius of the earth from the web and take average density of the earth equal 6 g/cm3 to calculate cross section of interaction with nuclei in the media treat the media as a collection of free nucleons

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
question
Physics, 22.06.2019 12:40
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
question
Physics, 22.06.2019 13:10
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
Answers: 2
question
Physics, 22.06.2019 15:20
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
You know the right answer?
Consider propagation of neutrinos (produced in the interaction of cosmic rays with air ) through the...
Questions
question
History, 03.12.2020 23:20
question
Mathematics, 03.12.2020 23:20
question
Business, 03.12.2020 23:20
question
Mathematics, 03.12.2020 23:20
question
Mathematics, 03.12.2020 23:20
Questions on the website: 13722363