Physical Universe
16th Edition
ISBN: 9780077862619
Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur
Publisher: Mcgraw-hill Education,
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Chapter 19, Problem 23MC
To determine
The origin of most energetic cosmic rays.
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The primordial background radiation is observable primarily at
a.
radio wavelengths.
b.
ultraviolet wavelengths.
c.
X-ray wavelengths.
d.
gamma ray wavelengths.
10.
In most models for the early universe, which was the first force to have frozen out of the original Supersymmetric force?
a.
Weak Nuclear Force.
b.
Strong Nuclear Force.
c.
Gravity.
d.
Electromagnetism.
Which of the following is most likely to yield evidence to support one of the models of the future of the universe?
1. Analysis of different types of radiation coming from the center of the Earth.
2. Analysis of asteroids in the solar system data collected from planetary missions.
3. Data collected from observing galaxies and clusters of galaxies of different ages.
4. Data collected from observing the arms of the Milky Way galaxy.
Chapter 19 Solutions
Physical Universe
Ch. 19 - Prob. 1MCCh. 19 - Prob. 2MCCh. 19 - Prob. 3MCCh. 19 - Prob. 4MCCh. 19 - Prob. 5MCCh. 19 - Prob. 6MCCh. 19 - Prob. 7MCCh. 19 - Prob. 8MCCh. 19 - Prob. 9MCCh. 19 - Prob. 10MC
Ch. 19 - Prob. 11MCCh. 19 - Prob. 12MCCh. 19 - Prob. 13MCCh. 19 - Prob. 14MCCh. 19 - Prob. 15MCCh. 19 - Prob. 16MCCh. 19 - Prob. 17MCCh. 19 - Prob. 18MCCh. 19 - Prob. 19MCCh. 19 - Prob. 20MCCh. 19 - Prob. 21MCCh. 19 - Prob. 22MCCh. 19 - Prob. 23MCCh. 19 - Prob. 24MCCh. 19 - Prob. 25MCCh. 19 - Current ideas suggest that what is responsible for...Ch. 19 - Prob. 27MCCh. 19 - Prob. 28MCCh. 19 - The expansion of the universe apparently a. has...Ch. 19 - Prob. 30MCCh. 19 - The elements heavier than hydrogen and helium of...Ch. 19 - Prob. 32MCCh. 19 - Prob. 33MCCh. 19 - Prob. 34MCCh. 19 - Prob. 35MCCh. 19 - Prob. 36MCCh. 19 - Prob. 37MCCh. 19 - Prob. 38MCCh. 19 - Prob. 39MCCh. 19 - Prob. 40MCCh. 19 - It is likely that the planets, satellites, and...Ch. 19 - Prob. 42MCCh. 19 - Prob. 43MCCh. 19 - Prob. 1ECh. 19 - Prob. 2ECh. 19 - Prob. 3ECh. 19 - The earth undergoes four major motions through...Ch. 19 - Prob. 5ECh. 19 - Prob. 6ECh. 19 - Prob. 7ECh. 19 - Prob. 8ECh. 19 - Prob. 9ECh. 19 - Prob. 10ECh. 19 - Prob. 11ECh. 19 - Prob. 12ECh. 19 - Prob. 13ECh. 19 - Prob. 14ECh. 19 - Prob. 15ECh. 19 - Prob. 16ECh. 19 - Prob. 17ECh. 19 - Prob. 18ECh. 19 - Prob. 19ECh. 19 - Prob. 20ECh. 19 - Prob. 21ECh. 19 - There is no day-night difference in cosmic-ray...Ch. 19 - Prob. 23ECh. 19 - Prob. 24ECh. 19 - Prob. 25ECh. 19 - Prob. 26ECh. 19 - Prob. 27ECh. 19 - Prob. 28ECh. 19 - Prob. 29ECh. 19 - Prob. 30ECh. 19 - What is the observational evidence in favor of the...Ch. 19 - Prob. 32ECh. 19 - Prob. 33ECh. 19 - To what event in the history of the universe can...Ch. 19 - Prob. 35ECh. 19 - Prob. 36ECh. 19 - Prob. 37ECh. 19 - Prob. 38ECh. 19 - Prob. 39ECh. 19 - Prob. 40ECh. 19 - Prob. 41ECh. 19 - Prob. 42ECh. 19 - Prob. 43ECh. 19 - Prob. 44ECh. 19 - Prob. 45E
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- Big Bang produced mainly hydrogen and helium and only extremely trace amount of heavier elements. Yet there is abundant amount of carbon on Earth. The carbon atoms in your body were produced by A. Fusion in other stars that have already died B. Radiative decays inside the Earth C. Chemical reactions inside the Earth D. Fusion in the Sunarrow_forwardThe primordial background radiation is observable primarily at a. radio and microwave wavelengths. b. ultraviolet wavelengths. c. visible wavelengths d. X-ray wavelengths. e. gamma-ray wavelengths.arrow_forwardThe cosmic background radiation comes from a time in the evolution of the universe a. when protons and neutrons were first formed. b. when the big bang first began to expand. c. that is known as the inflationary period. d. when gamma rays had enough energy to destroy nuclei. e. when electrons began to recombine with nuclei to form atoms.arrow_forward
- Where does gold (the element) come from? A. It is produced during the supernova explosions of high-mass stars. B. It was produced during the Big Bang. C. It is produced by mass transfer in close binaries. D. It is produced during the late stages of fusion in low-mass stars.arrow_forwardEinstein said that gravity exists because: * A. massive objects warp space. B. of the existence of black holes. C. massive objects attract one another. D. light moves randomly throughout the universe. How do scientists / astronomers spot a black hole? * A. by using gamma rays and x-rays to detect high energy sources B. by using radioactive waves to detect high energy sources C. By using high energy to detect gamma rays and x-rays D. By using massive telescopes to detect gamma ray If you place your index just in front of you and try to look at it with you right eye open and your left eye close, then look at it with your left eye open and right eye close this time. You will notice that there is a slight change of the position of your index finger. What concept is applied how astronomers were able to measure the distance of heavenly bodies from the Earth? * A. Cosmic distance ladder B. Parallax C. Luminosity…arrow_forward4. How does an electron differ from a positron?5. Why is proton-proton chain reaction important in stellar formation and evolution?arrow_forward
- In 1998, it was announced that the expansion of the universe is accelerating. What does this imply from the perspective of the big bang? a. A force exists that we knew nothing about causes the expansion. b. The universe must be closed. c. The universe is finite. d. The amount of dark matter must be far less than the amount of normal matter. e. The universe must be infinitely old.arrow_forward1. Which of these is true about the Big Bang model? a. The singularity is an established, well-defined part of the model. b. Cosmic expansion stopped at some point in time. c. Part of its proof is the amounts of H and He we have in the universe today. d. The Big Bang was a big explosion that threw matter into many different directionsarrow_forwardI. NUCLEAR EQUATION: You are going to write the nuclear equations for the following fusion reactions responsible for the abundance of lighter nuclei in the universe. 1. Fusion of two Deuterium isotopes to form Helium3 2. Fusion of Deuterium and a neutron to form Tritium 3. Fusion of Deuterium and a proton to form Heliumarrow_forward
- If the universe is closed and finite, then a. the universe has a center and an edge. b. the universe will expand forever. c. the final fate of the universe will be very cold and of extremely low density. d. the space-time of the universe is negatively curved. e. none of the above are true.arrow_forward4. Which of the following constituents of the Universe is present in the highest fraction in terms of its contribution to the total energy of the Universe? a. Dark Matter. b. Dark Energy. c. Light. d. Normal (baryonic) matter.arrow_forwardWhat did Einstein call his greatest blunder? a. introducing a cosmological constant to his equations to balance gravity. b. not believing the evidence that supported quantum mechanics. c. developing the special theory of relativity. d. not studying math and science earlier in school. e. none of the abovearrow_forward
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