1. Given the Sun's lifetime is about 10 billion years, estimate the lifetime of stars with...
#2 please ! Ro le Astronomy 1F03 Problem Set 3 Thursday, Nov 10th, 2019 Write your answers on a separate sheet and show your work 1. The protesproton chain effectively c erta hyre en into hem according to 4 He. A Helium wus weighs 6.64518 x 10 IT kg and Hydrogen mucha proton) welches 1.67262 x 10 Workout the change in a when I kg of Hydrogen is converted completely into Helium 4. Convert the change in mass Per burning...
choose correct answer. no explanation needed QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight follows the same distribution as mass d) there are indications of mass from motion but no light e) spacetime is warped by mass 2) The rotation curve of the Galaxy is a) flat in the core, planet-like in the disk b) wheel-like in the core, flat in...
Question 2 (1 point) The Weak Interaction is weak because Question 2 options: To interact weakly requires the creation of a heavy gauge boson Not many particles participate in it Particles that interact weakly do so at a great distance The weak interaction involves neutrinos which are rare Question 3 (1 point) All other things being equal, which of the following conditions would result in more nuclear reactions taking place each second inside the Sun than is currently the case...
NATS 1580 A Assignment 1 Due date: Feb 11. 2020 Each question is worth 10 marks and assignment is worth 10% of your final grade. Please show all your calculation with proper units. (a) What color is typically associated with 600 nm? What is its frequency (b) What color is typically associated with 532 nm? What is its frequency? (c) What color is typically associated with 589 nm? What is its frequency? (d) In what part of the EM spectrum...
3 (b) The energy of a Bohr atom in the n-th excited state is given by the formula E--a2mc2 2,7, where α-e2/(4πέρ,10hc)-1 /137, m is the electron mass and e denotes the electron electric charge. i) Why is the total energy negative? Explain briefly your answer. ii) What is the radius of the electron in the n-th excited state in the Bohr atom? To answer that correctly follow the next steps Use Bohr's angular momentum quantization principle to obtain an...