UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 7, Problem 7CC
To determine
The reason for the leakage of hydrogen molecules from Earth’s atmosphere into space even though their speed in Earth’s atmosphere is lower than the escape velocity.
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Chapter 7 Solutions
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
Ch. 7 - Prob. 1CCCh. 7 - Prob. 2CCCh. 7 - Prob. 3CCCh. 7 - Prob. 4CCCh. 7 - Prob. 5CCCh. 7 - Prob. 6CCCh. 7 - Prob. 7CCCh. 7 - Prob. 8CCCh. 7 - Prob. 9CCCh. 7 - Prob. 10CC
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- Assume that a planet will have lost its initial atmosphere by the present time if the average molecular speed exceeds one-sixth of the escape speed. What would Mercury's mass have to be in order for it to still have a nitrogen atmosphere? The molecular weight of nitrogen is 28.arrow_forwardWhy doesn't Mars have active volcanoes today? A) all of the lava already escaped B) the planet lost its internal heat to cold space C) the volcanoes are just dormant and will erupt againarrow_forwardIf gas expands to fill all the space available to it, explain why the Earth's atmosphere doesn't drift off into space.arrow_forward
- Despite being within the sun’s “habitable zone”, both Venus and Mars have average surface temperatures that do not permit the existence of liquid water. Besides albedo, name three other important properties of a planet that can influence its temperature.arrow_forwardAn astronaut has a mass of 68 kg, what is the weight of the astronaut on earth at sea level?What is the mass of the astronaut on the Moon, and on Mars?What is the weight of the astronaut on the Moon, and on Mars?What is the pressure exerted by the astronaut's shoe on Earth to Mars? (Assume an area of the astronaut's shoe)What is the ratio of the pressure exerted by the astronaut's shoe on Earth to Mars?arrow_forwardThe total mass of this planet's atmosphere may be higher than the Earth's but the gases present must be very light ones like hydrogen and helium. The escape velocity of the planet will be very high. Due to the high escape velocity, the light gases were not able to escape and hence forming a thick atmosphere Is the escaping velocity for this planet greater or lower than that of the earth?arrow_forward
- On the night side of Venus, we find that the brightest wavelength, that is the wavelength this region of the planet is emitting the most energy, is about 3.9 micrometers (3.9x10-6 meters). Approximately how warm is the planet in this region?arrow_forwardThe total mass of this planet's atmosphere may be higher than the Earth's but the gases present must be very lighter ones like hydrogen and helium. The escape velocity of the planet will be very high. Due to the high escape velocity, the light gases were not able to escape and hence forming a thick atmosphere Would the atmosphere for this planet be thicker or thinner than that of the Earth?arrow_forwardWhat is the relationship between Mercury’s rotational period and orbital period?arrow_forward
- H does the increasing abundance of CO2 in Earth’s atmosphere cause a rise in Earth’s temperature’arrow_forwardThe runaway greenhouse effect and its inverse, the runaway refrigerator effect, have led to harsh, uninhabitable conditions on Venus and Mars. Does the greenhouse effect always cause climate changes leading to loss of water and life? Give a reason for your answer.arrow_forwardEstimate the maximum height of the mountains on a hypothetical planet similar to Earth but with twice the surface gravity of our planet.arrow_forward
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