Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Chapter 7, Problem 7QFR
Why does the Moon lack an atmosphere?
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Use the concept of escape speed to explain why the Moon has
no atmosphere.
The 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?
What is the best explanation for the moon's Lack of
atmosphere?
Chapter 7 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 7 - Describe a crater and how it is formed. Why do...Ch. 7 - How do the maria differ from the highlands?Ch. 7 - Prob. 3QFRCh. 7 - What formed the maria? Why are they smooth?Ch. 7 - Prob. 5QFRCh. 7 - Prob. 6QFRCh. 7 - Why does the Moon lack an atmosphere?Ch. 7 - Prob. 8QFRCh. 7 - How do astronomers think the Moon formed? What...Ch. 7 - Why is the Moons surface heavily cratered but...
Ch. 7 - Prob. 11QFRCh. 7 - Prob. 12QFRCh. 7 - Prob. 13QFRCh. 7 - Highway surfaces develop potholes over time. How...Ch. 7 - Bergmanns rule states that individuals of a given...Ch. 7 - Prob. 3TQCh. 7 - Why will an astronauts footprint on the Moon last...Ch. 7 - Prob. 5TQCh. 7 - Prob. 6TQCh. 7 - If the day were 12 hours long, what would be the...Ch. 7 - Prob. 8TQCh. 7 - Why do tides happen about an hour later each day?Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 1TYCh. 7 - Prob. 2TYCh. 7 - Prob. 3TYCh. 7 - Prob. 4TYCh. 7 - Prob. 5TYCh. 7 - Prob. 6TY
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- The 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_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 Is the escaping velocity for this planet greater or lower than that of the earth?arrow_forwardA submarine hovers at 240 meters below sea level if it descends 160 meters and then ascends 390 meters what is the new positionarrow_forward
- What is the energy source for the motion of gas in the atmosphere? What prevents atmospheric gases from flying off into space?arrow_forwardIn each situation listed, an objects temperature increases. For each situation, decide if energy was transferred to the object through heat or work. Explain your answers. a. A pitcher of water is removed from the refrigerator and left on the kitchen counter. b. A rubber ball is bounced (repeatedly) against the floor. c. A meteor falls through the Earths atmosphere.arrow_forwardWhat is surface tension? What is its cause? Why is the surface tension also called surface energy?arrow_forward
- The force of the atmosphere at sea level against the outside of a 10 m2m2 store window is about 1 million NN. Why doesn't this shatter the window? Why might the window shatter in a strong wind blowing past?arrow_forwardWind tunnels are used to measure the aerodynamic properties of prototype models. (a) if a fan generates a wind speed of 25.0 mi/h inside an 8.75-ft2 section of a wind tunnel, what is the wind speed as the air enters the narrower, 4.35-ft² section of the wind tunnel? (b) Explain why it is often windier on city streets surrounded by tall buildings than in more open areaarrow_forwardA cloud has one edge at the origin and extends a distance of 6.7 meters to the other edge. The linear mass density of the cloud follows the equation X(x) = 864x^4 (with the constant having appropriate units such that λ has units of kg/m). Where is the center of mass of this cloud?arrow_forward
- A student drops three balls of identical size from identical heights into a container of sand. The first ball has a mass of one gram. The second ball has a mass of three grams. The third ball has a mass of five grams. Describe how the transfer of energy from each ball impacts the depth of the crater in simple termsarrow_forwardWhich of the following condition will be true for a planet to have atmosphere? [A] velocity of molecules in its atmosphere is lesser than escape velocity [B] velocity of molecules in its atmosphere is greater than escape velocity [C] velocity of molecules in its atmosphere is twice the escape velocity [D] velocity of molecules in its atmosphere is equal to the escape velocityarrow_forwardCompare these atmospheric pressure with Mars and estimate how high you'd need to go in Earth's atmosphere to be at the same pressure as the surface of Mars? The given information is in the attachment.arrow_forward
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