21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 8, Problem 9QP
To determine
The way in which the geologists can determine the actual age of features on a planet.
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Students have asked these similar questions
1. Which of the following STILL significantly heats the Earth's interior?
a.
bombardment
b.
compression
c.
radioactivity
d.
differentiation
2. Both the Moon and Mercury have
a.
volcanic craters only
b.
impact craters only
c.
some volcanic and some impact craters
The condensation sequence predicts that asteroids consisting of carbonaceous material would form
a.
in the inner solar system where it is warmer.
b.
at random locations then migrating to the outer asteroid belt due to the gravitational influence of Jupiter and Saturn.
c.
in the outer solar system where it is very cold.
d.
between the orbits of Jupiter and Saturn.
e.
in the outer asteroid belt where it is cooler.
34.How old is this Martian Rock that is found to be containing 12.5% of a radioactive parent nucleus? The half-life of this isotope is 1 billion years old.
a.
5 billion years
b.
12 billion years
c.
3 billion years
d.
10 billion years
Chapter 8 Solutions
21st Century Astronomy
Ch. 8.1 - Prob. 8.1CYUCh. 8.2 - Prob. 8.2CYUCh. 8.3 - Prob. 8.3ACYUCh. 8.3 - Prob. 8.3BCYUCh. 8.4 - Prob. 8.4CYUCh. 8.5 - Prob. 8.5CYUCh. 8.6 - Prob. 8.6CYUCh. 8 - Prob. 1QPCh. 8 - Prob. 2QPCh. 8 - Prob. 3QP
Ch. 8 - Prob. 4QPCh. 8 - Prob. 5QPCh. 8 - Prob. 6QPCh. 8 - Prob. 7QPCh. 8 - Prob. 8QPCh. 8 - Prob. 9QPCh. 8 - Prob. 10QPCh. 8 - Prob. 11QPCh. 8 - Prob. 12QPCh. 8 - Prob. 13QPCh. 8 - Prob. 14QPCh. 8 - Prob. 15QPCh. 8 - Prob. 16QPCh. 8 - Prob. 17QPCh. 8 - Prob. 18QPCh. 8 - Prob. 19QPCh. 8 - Prob. 20QPCh. 8 - Prob. 21QPCh. 8 - Prob. 22QPCh. 8 - Prob. 23QPCh. 8 - Prob. 24QPCh. 8 - Prob. 25QPCh. 8 - Prob. 26QPCh. 8 - Prob. 27QPCh. 8 - Prob. 28QPCh. 8 - Prob. 29QPCh. 8 - Prob. 30QPCh. 8 - Prob. 31QPCh. 8 - Prob. 32QPCh. 8 - Prob. 33QPCh. 8 - Prob. 34QPCh. 8 - Prob. 35QPCh. 8 - Prob. 36QPCh. 8 - Prob. 37QPCh. 8 - Prob. 38QPCh. 8 - Prob. 39QPCh. 8 - Prob. 40QPCh. 8 - Prob. 41QPCh. 8 - Prob. 42QPCh. 8 - Prob. 43QPCh. 8 - Prob. 44QPCh. 8 - Prob. 45QP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
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- Pluto’s density is 1.8 g/cm 3. This implies that Pluto a. has a large iron-nickel core. b. is about 50 percent water and 50 percent rocky material. c. should have a magnetic field about one-third as strong as Earth’s. d. is still geologically active. e. probably has a small ring system that hasn’t yet been detected.arrow_forward27) The figure below shows a cross section of a hypothetical planet. An earthquake occurred near the surface and seismometers recorded the arrival of P- and S-waves as shown in the figure. The waves shown are the first arrivals and have NOT been refracted or reflected. What can you conclude about the interior of the planet based on seismographs? A) The boundary between the lithosphere and asthenosphere is close to the surface B) The planet has a large, liquid core C) The planet has a large, solid core D) The planet has a solid inner corearrow_forwardThat the moon has no magnetic field implies that a. the moon is spinning too slowly to produce a magnetic field. b. the interior of the moon is too hot to produce a magnetic field. c. the crust of the moon is so thick that the magnetic field can not get out of the interior. d. the moon’s core contains little if any molten iron. e. the moon is moving further from Earth.arrow_forward
- Due to tidal forces, a moon orbiting a planet will eventually a always keep the same side toward the planet b collide with the planet c break up into a number of fragments d develop a warmer climate as time goes on Jupiter's moon Io is very volcanically active, which means it has plate tectonics. a. true b. falsearrow_forwardAn asteroid could produce an iron core and silicate mantle if it a. differentiated. b. outgases. c. condensed. d. accreted. e. sublimed.arrow_forwardQuestion :2 a)Calculate the mean density of the earth and moon assuming a spherical shape and the radii rErde = 6371 km and rMond = 1734 km. b) Determine the density of a fully water- saturated sandstone (d quartz = 2650 kg / m³) with a porosity of 18%. c) How does the density of the sandstone under b) change when it is dry. d) Calculate the porosity of a dry cylindrical limestone sample (length = 4.1 cm, Diameter = 2.0 cm, d Calcite = 2710 kg / m³) with a mass of 34.9 g. %3Darrow_forward
- 3. Several years ago, NASA conducted the Lunar CRater Observation and Sensing Satellite (LCROSS) mission to look for evidence of water deep in craters near the south pole of the Moon (www.nasa.gov/mission_pages/LCROSS/main/index.html). Preliminary analysis of the LCROSS data has already demonstrated that there are indeed signifcant quantities of water on the Moon-a useful thing to know if we ever decide to build a permanent base on the Moon. The LCROSS spacecraft was launched from Earth aboard at Atlas V rocket on 18 June 2009. It was then sent on its way to the Moon by a Centaur transfer stage rocket. On 9 October 2009, while being observed by the LCROSS spacecraft, the Centaur rocket crashed into a crater at the south pole of the Moon creating a huge plume of Lunar dust. Instruments on the LCROSS spacecraft measured the spectroscopic properties of this dust and radioed this data back to Earth for analysis. Then, 4 minutes after the Centaur rocket impacted the Moon, the LCROSS…arrow_forwardWhen a projectile ( a rock from space, say) hits the surface of the Moon, which of the following do we NOT get? a. a crater b. an ejecta blanket c. secondary craters d. a rough hilly apron (or slope) of ejected material e. a gushing out lots of water that had been frozen inside the ground of the cold Moon, but it is briefly heated by the impactarrow_forwardChondrites are meteorites that have a. never been heated. b. been heated sufficiently to release volatiles they contained. c. been heated sufficiently to melt the chondrules. d. been completely melted. e. entered Earth’s atmosphere but will be destroyed before reaching the ground.arrow_forward
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