Physics question and answers for October 16, 2023
- Q 8 The potential energy U of diatomic molecules as a function of separation ris shown in figure Identify the correct statement Ju BC A T I O a The atoms...
- Q A proton and an a particle are initially at a distance r apart Find the KE of a particle at a large reparation from proton after being released
- Q The electron and the proton in a hydrogen atom 0 53 x 10 11 m apart The ratio of electrostatic and gravitational forces is a 44 x 10 41 c...
- Q 18 A nucleus of mass 220 amu in free state decays to emit an a particle Kinetic energy of the a particle emitted is 5 4 MeV The recoil energy...
- Q The electrostatic energy of Z prot ns uniformly distributed throughout a spherical nucleus of radius R is given by 3 Z Z 1 e 5 4 R The measured masses...
- Q A doped semiconductor has impurity levels 30 meV below the conduction band In a thermal collision an amount kT of energy is given to the extra electron loosely bound to...
- Q A radio isotope X with a half life 1 4 10 yr decays to Y which is stable A sample of the rock from a cave was found to contain...
- Q 10 Na23 being unstable decay into stable Na the nuclear mass are m 0Na23 22 994466 amu m Na23 22 989770 amu and mass of electron 11 0 000545 amu...
- Q The following image is an example of Select one O O 00 m 3 Li Nuclear fission Nuclear fusion Be Radioactive decay Synthesis
- Q A moving neutral small particle of mass of 7 neutrons makes a head on collision with a double ionized Lithium atom in its ground state If the minimum KE of...
- Q 3 4 94 4 He Fission or fusion 4 De Fission or fusion 59 238 U 92 H Fission or fusion 56 Fe 26 12 C 265 Hs 108 Fission...
- Q Select one De Nuclear Change 1 Question 10 Deep in the core of the Sun 620 million metric tons of hydrogen nuclei are converted into 616 million metric tons of...
- Q Nuclear Change 1 Question 6 The change in mass during a nuclear reaction is given by which equation Select one None of the answer choices Q mc t E mc...
- Q What is Binding Energy O The energy that prevents a neutron from decaying O The energy that causes fission O The energy that holds the nucleus together O The energy...
- Q What are properties of an alpha particle Choose all that apply has no affect on atomic number increases the atomic number by 1 is a form of electromagnetic energy a...
- Q Scientists uncover a meteorite that has 12 7 of its original Al 26 amount How long ago was the meteorite formed The half life of Al 26 is 720 000...
- Q Hydrogen 3 has a half life of 12 35 years What mass of hydrogen 3 will remain from a 100 0 mg initial sample after 5 0 years Point 07mg...
- Q What is the binding energy of helium 4 atom given that its actual atomic mass is 4 002603 c 3 0x108 m s m of proton 1 007276 m of...
- Q What conditions in the nucleus usually result in beta decay O a O b Oc Od The nucleus has too many neutrons The nucleus has too many protons The valence...
- Q 1 State the number of neutrons and protons in each of the following nuclei 2H 197 Fe b BC d a C 26
- Q 2 Complete the following table below Atomic Number 1 19 20 82 82 Proton to Neutron Ratio for a Stable Nucleus
- Q The half life of calcium 47 is about 5 days Starting with 64 g of this isotope what would be the amount remaining after 20 days 32 16 Oc 8...
- Q 2 Which of the following accurately describes why massive stars can no longer fuse elements at their cores once the core has become exclusively iron Select one OA Fusion of...
- Q What are properties of a gamma ray Choose all that apply O an electron O has no affect on atomic mass O a helium nucleus increases the atomic number by...
- Q What is Binding Energy The energy that keeps the electrons attracted to the protons The energy that holds the nucleus together The energy that prevents a neutron from decaying O...
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