Activity 1.3 Fill in the blanksAnswer the following in a separate answer sheet1. What are the four light elements formed in the big bang nucleosynthesis?2. What is formed when a proton and a neutron fuse?3. What is formed when 2 deuterium nuclei combine?4. What is formed when a deuterium fused to tritium?5. What is formed when a deuterium combines with helium-3?Activity 1.4 - Complete the nucleosynthesis reactions belowGiven: Composition of each nuclei:D= 1p+, ln T=1p+,2n He3 = 2p+,1n He4 = 2p+,2n Be7 = 4p+,3n3p+,4n1. p+Li7 -n =2. 'He +3. Li+ Y+ p+2 "HeD =4.- T+ p+* Be + Y+5.+

These reactions are one of the most important reactions in research of fusion studies for…

Answered: Activity 1.3 Fill in the blanks Answer…

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter12: Relativity, Particle Physics, And Cosmology

Section: Chapter Questions

Problem 2AA

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Define Unification, and why scientists are striving for the unification of all forces? ilac dacariba in sandardmodal and a ha.
What is critical temperature Tc? Do all materials have a critical temperature? Explain why or why not.
What is the binding energy per nucleon for the following isotopes? Suppose that mn = 1.008665 u, m1H =1.007825 u, 1u= 931.494 MeV/c2. 1) What is the binding energy per nucleon for 2H? Be sure to look up the atomic mass of Hydrogen -2 for use in your calculations. (Express your answer to six significant figures.) 2) What is the binding energy per nucleon for 4He? (Express your answer to six significant figures.) 3) What is the binding energy per nucleon for 12C? (Express your answer to six significant figures.) 4) What is the binding energy per nucleon for 56Fe? (Express your answer to six significant figures.)
1. What is the mass defect of Au-197 formation? (Actual mass: 196.966552) 2. What is the nuclear binding energy of Au-197 in MeV? 3. What is the binding energy per nucleon (in MeV) of Au-197?
A neutron star is the remnant of a large star that exploded in a supernovaat the end of its life. Suppose the star’s radius decreases by a factor of6 × 10−5 during this process, and its mass decreases by a factor of eight.If the star rotates once per 20 days during its life, how fast would itsremnant neutron star rotate? Assume the star is always a solid, uniformsphere. (It is not, but this exercise still gives a reasonable answer).
2) Uranium-238 undergoes alpha decay. Into what element does Uranium 238 transmute? What is the atomic number of the new element? 4) Technetium-99 m is a radioactive isotope with a half-life of 6 hours. If a sample of was originally 100mg , how much would remain after 24 hours? 5) How long would it take a 1-kg radioactive substance with a half-life of 100 years to decay into1 2.5 g?
Identify zero-force members, if any, and justify your selection
1. What is formed when there is a fusion of two deuterium nuclei in big bang nucleosynthesis? 2. What are the conditions in the universe so that a nuclear fusion could occur? 3. What is formed when there is fusion of deuterium and tritium? 4. What was formed as the universe expanded and cooled down?
(a) Calculate The approximate age of the universe from the average value of the Hubble constant, To do this, calculate the time it would take to travel 1 Mly at a constant expansion rate of 20 km/s. (b) If deceleration is taken into account, would the actual age of the universe be greater or less than that found here? Explain.
(a) Calculate the approximate age of the universe from the average value of the Hubble constant, H0 = 20km/s ⋅ Mly . To do this, calculate the time it would take to travel 1 Mly at a constant expansion rate of 20 km/s. (b) If deceleration is taken into account, would the actual age of the universe be greater or less than that found here? Explain.
Why does helium fusion require a higher temperature than hydrogen fusion?
How much energy would be released if a star with a mass of 25 Msun and a radius of 10 Rsun detonates as a supernova explosion in 1 second? (Hint: think about the definition of binding energy). Express your answer in terms of solar luminosities.

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