if a proton has a relative mass of 1 unit and a relative charge of +1 unit .what is the接上relative mass and charge of :1.a neutron2.an electron? 答案 质子,中子,电子...有什么关系?化学知识忘没了.搞清它们关系了应该就能选出来了.相关推荐 1if a proton has a relative mass of 1 unit...
neutron-nucleus reactionsnuclei with mass number 220 or higher/ 237Np(n,f)235U(n,f)fission cross-section ratioionization fission chambersthreshold cross-section methodtime-of-flight technique/ A2540J Few nucleon transfer reactions A2585E Neutron induced fission A2790 Properties of nuclei with 220 ...
Relative Momentum of Quarks in Mesons at Center of Mass Frame When we study the bound state of quarks, i.e. mesons, the relative momentum is given as; q=1/2(p1-p2). Where p1 and 2, are momentum of quark and anti-quark, respectively.My question is, what is the value of q at ...
Events were selected that were close to the symmetric constant relative energy geometry in order to enhance the sensitivity of the observables to off-shell and three-body effects. The measurements covered values of α, the center-of-mass angle between the incoming proton and the outgoing neutron...
nuclei with mass number 220 or higher/ neutron-induced fission cross sectionsfission cross-section ratios241Am235U243Amneutron energyionization fission chambersThe fission cross-section ratios Am: U and Am: U were measured as a function of neutron energy from 0.2 to 30 MeV using ionization fission...
Finding a spin-independent WIMP-nucleon cross-section sigmachi = 8.8 x 10 -44 cm2 and a spin-dependent WIMP-neutron cross-section sigma chi = 1.0 x 10-38 cm2 for a WIMP mass of 100 GeV/c2 (90% C.L.).;In this work I give an overview of the dark matter evidence and review ...