Life in the Universe (4th Edition)
4th Edition
ISBN: 9780134089089
Author: Jeffrey O. Bennett, Seth Shostak
Publisher: PEARSON
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Chapter 3, Problem 21TYU
To determine
Decide whether the given statement is reasonable or not.
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Chapter 3 Solutions
Life in the Universe (4th Edition)
Ch. 3 - List three major ideas of astronomy that help...Ch. 3 - Briefly define and describe each of the various...Ch. 3 - Describe the solar system as it looks on the...Ch. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - What do we mean when we say that Earth and life...Ch. 3 - Imagine describing the cosmic calendar to a...Ch. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - What is the difference between matter in the...Ch. 3 - Define and give examples of kinetic energy,...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Briefly describe the four major features of our...Ch. 3 - Briefly describe the nebular theory and how it...Ch. 3 - What was the close encounter hypothesis for our...Ch. 3 - How have recent discoveries led scientists to...Ch. 3 - Prob. 21TYUCh. 3 - At a middle school talent show, 14-year-old Sam...Ch. 3 - SETI researchers announced today that if they...Ch. 3 - A noted physicist today announced that he has...Ch. 3 - Prob. 25TYUCh. 3 - Astronomers have discovered a galaxy in the far...Ch. 3 - Inventor John Johnson has patented a device that...Ch. 3 - Prob. 28TYUCh. 3 - Prob. 29TYUCh. 3 - Using new, powerful telescopes, biologists today...Ch. 3 - Prob. 31TYUCh. 3 - Prob. 32TYUCh. 3 - A television advertisement claiming that a product...Ch. 3 - When we say the universe is expanding, we mean...Ch. 3 - Prob. 35TYUCh. 3 - The age of our solar system is about (a) one-third...Ch. 3 - Prob. 37TYUCh. 3 - How many of the planets orbit the Sun in the same...Ch. 3 - Prob. 39TYUCh. 3 - Prob. 40TYUCh. 3 - Explaining the Past. Is it really possible for...Ch. 3 - A Strange Star System. Suppose that we discovered...Ch. 3 - Prob. 44IFCh. 3 - Alien Technology. Some people believe that Earth...Ch. 3 - Atomic Terminology Practice. a. The most common...Ch. 3 - Prob. 49IFCh. 3 - Prob. 50IFCh. 3 - Patterns of Motion. In one or two paragraphs,...Ch. 3 - Two Kinds of Planets. The jovian planets differ...Ch. 3 - Pluto and Eris. How does the nebular theory...Ch. 3 - Rocks from Other Solar Systems. Many leftovers...Ch. 3 - Prob. 55IFCh. 3 - Prob. 56IFCh. 3 - Scale of the Solar System. The real diameters of...Ch. 3 - Prob. 58IFCh. 3 - Prob. 59IFCh. 3 - Prob. 60IFCh. 3 - Prob. 61IFCh. 3 - Prob. 62IFCh. 3 - Prob. 63IFCh. 3 - Prob. 67WPCh. 3 - Tour of the Solar System. Visit one of the many...
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- Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri (located only 4.4 light-years away). If we launched a "generation ship" at a constant speed of 1500.00 km/s from Earth with a group of people whose descendants will explore and colonize this planet, how many years before the generation ship reached Alpha Centauri? (Note there are 9.46 ××1012 km in a light-year and 31.6 million seconds in a year.arrow_forwardWhich of the following scientists have contributions relating to intelligent alien life-forms? Cannon and Hubble Drake and Sagan Hawking and Copernicus Kaku and Keplerarrow_forwardThe Kepler telescope, still in orbit around the Sun, has detected thousands of inhabited exoplanets moons of exoplanets potentially Earth-threatening asteroids confirmed exoplanets The most promising places to look for other habitable planets would be in our own solar system orbiting stars similar to our Sun, or even dimmer than our Sun in other galaxies orbitin bright, giant stars like Betelgeusearrow_forward
- Today, the largest radio telescope in the world is located in Puerto Rico Russia China Australia To be considered habitable, a planet must have an alien civilization living on it the right temperature for liquid water on the surface the right conditions for human explorers to be able to survive a very large iron corearrow_forwardThe HI-SEAS experiments in Hawaii are simulated Mars missions where crews cope with the stress of a real Mars mission tests of new launch vehicles for a future Mars mission attempts to grow crops in a simulated Mars environment computer simulations of Mars's climate over the past 500 million years The Apollo astronauts reported sometimes seeing random bright flashes during their missions to the Moon. These were caused by occasional malfunctions in the spacecraft's electrical system Galactic Cosmic Rays (GCR) impacting their retinas dust grains striking the surface of the spacecraft and "exploding" the solar wind impacting their retinasarrow_forwardF2 Planets in the habitable zone of their stars: 1 #3 3 O are so far from their stars that it is very difficult to discover them O are at a temperature where water can exist as a liquid on the planet's surface O are always the planets closest to the star are also called hot Jupiters O cannot exist around stars that are red dwarfs (spectral type M) E G D F3 $ 54 2 4 R F4 LL F DII % 5 Q Search F5 T 9 -0. G < 6 A F6 Y * F7 & 7 H PrtScn U FB 8 Home Jarrow_forward
- The fictional asteroid Lilliput orbits around the Sun one time every 3.605 Earth years. What is the average distance for Lilliput away from the Sun in astronomical units (AU)? One astronomical unit is equal to the average distance the Earth is away from the Sun, 1.496x1011m. The mass of the Sun is 1.989x1030kg.arrow_forwardCalculate how long radio communications from the spacecraft will take when it encounters Mars. The furthest distance from Earth to Mars is 2.66 AU. Remember that 1 AU = 1.5 x 1011 m and that light travels at 3 x 108 m/s. So how long will the radio messages take to travel this greatest distance of 2.66 AU? If two way communication between the Earth and the spacecraft involve a 1 s time lapse before an acknowledging signal is sent by the spacecraft, how long a time is there between sending a command to the spacecraft and receiving a reply?arrow_forwardIn Table 2, there is a list of 15 planets, some of which are real objects discovered by the Kepler space telescope, and some are hypothetical planets. For each one, you are provided the temperature of the star that each planet orbits in degrees Kelvin (K), the distance that each planet orbits from their star in astronomical units (AUs) and the size or radius of each planet in Earth radii (RE). Since we are concerned with finding Earth-like planets, we will assume that the composition of these planets are similar to Earth's, so we will not directly look at their masses, rather their sizes (radii) along with the other characteristics. Determine which of these 15 planets meets our criteria of a planet that could possibly support Earth-like life. Use the Habitable Planet Classification Flow Chart (below) to complete Table 2. Whenever the individual value you are looking at falls within the range of values specified on the flow chart, mark the cell to the right of the value with a Y for…arrow_forward
- A planet is located at < - 3×1010, 8×1010, - 5×1010 > m. A star is located at < 8×1010, - 5×1010, 5×1010 > m.arrow_forwardOn planet Q, g = 2.24 m/s^2, If the mass of planet Q is 8.96 x 10^21kg, what is the radius of planet Q. G = 6.67 x 10^-11N-(m/kg)^2arrow_forwardWhy does the Drake equation implicitly assume the Copernican Principle?arrow_forward
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