Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Chapter 4, Problem 29E
The secret recipe to the ever-popular veggie burgers in the college cafeteria is hidden in a drawer in the director’s office. Two students decide to break in to get their hands on it, but they want to do it a few hours before dawn on a night when there is no Moon, so they are less likely to be caught. What phases of the Moon would suit their plans?
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Chapter 4 Solutions
Astronomy
Ch. 4 - Discuss how latitude and longitude on Earth are...Ch. 4 - What is the latitude of the North Pole? The South...Ch. 4 - Make a list of each main phase of the Moon,...Ch. 4 - What are advantages and disadvantages of apparent...Ch. 4 - What are the two ways that the tilt of Earth’s...Ch. 4 - Why is it difficult to construct a practical...Ch. 4 - Explain why there are two high tides and two low...Ch. 4 - What is the phase of the Moon during a total solar...Ch. 4 - On a globe or world map, find the nearest marked...Ch. 4 - Explain three lines of evidence that indicate that...
Ch. 4 - What is the origin of the terms “a.m.” and “p.m.”...Ch. 4 - Explain the origin of the leap year. Why is it...Ch. 4 - Explain why the year 1800 was not a leap year,...Ch. 4 - What fraction of the Moon’s visible face is...Ch. 4 - Why don’t lunar eclipses happen during every full...Ch. 4 - Why does the Moon create tidal bulges on both...Ch. 4 - Why do the heights of the tides change over the...Ch. 4 - Explain how tidal forces are causing Earth to slow...Ch. 4 - Explain how tidal forces are causing the Moon to...Ch. 4 - Explain why the Gregorian calendar modified the...Ch. 4 - The term equinox translates as “equal night.”...Ch. 4 - The term solstice translates as “Sun stop.”...Ch. 4 - Why is the warmest day of the year in the United...Ch. 4 - When Earth’s Northern Hemisphere is tilted toward...Ch. 4 - Where are you on Earth if you experience each of...Ch. 4 - In countries at far northern latitudes, the winter...Ch. 4 - What is the phase of the Moon if it . . . A. rises...Ch. 4 - A car accident occurs around midnight on the night...Ch. 4 - The secret recipe to the ever-popular veggie...Ch. 4 - Your great-great-grandfather, who often...Ch. 4 - One year in the future, when money is no object,...Ch. 4 - Suppose you lived in the crater Copernicus on the...Ch. 4 - In a lunar eclipse, does the Moon enter the shadow...Ch. 4 - Describe what an observer at the crater Copernicus...Ch. 4 - The day on Mars is 1.026 Earth-days long. The...Ch. 4 - What is the right ascension and declination of the...Ch. 4 - What is the right ascension and declination of the...Ch. 4 - What is the right ascension and declination of the...Ch. 4 - During summer in the Northern Hemisphere, the...Ch. 4 - On the day of the vernal equinox, the day length...Ch. 4 - Regions north of the Arctic Circle are known as...Ch. 4 - In a part of Earth’s orbit where Earth is moving...Ch. 4 - In a part of Earth’s orbit where Earth is moving...Ch. 4 - If Sirius rises at 8:00 p.m. tonight, at what time...Ch. 4 - What are three lines of evidence you could use to...Ch. 4 - If the Moon rises at a given location at 6:00 p.m....Ch. 4 - Explain why some solar eclipses are total and some...Ch. 4 - Why do lunar eclipses typically last much longer...Ch. 4 - Suppose Earth took exactly 300.0 days to go around...Ch. 4 - Consider a calendar based entirely on the day and...Ch. 4 - If a star rises at 8:30 p.m. tonight,...Ch. 4 - What is the altitude of the Sun at noon on...Ch. 4 - Show that the Gregorian calendar will be in error...
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- According to Lunar Laser Ranging experiment the average distance LM from the Earth to the Moon is approximately 3.82 x 105 km. The Moon orbits the Earth and completes one revolution relative to the stars in approximately 27.5 days (a sidereal month). Calculate the orbital velocity of the Moon in m/s.arrow_forwardThe NASA Apollo Missions to the moon in the late 1960s and early 1970s were in fact a "giant leap for mankind". It took Apollo 11, that's the spaceship that carried Neil Armstrong, Michael Collins and Buzz Aldrin to the moon in 1969, 4 days 6 hours and 45 minutes to get to the moon. They took off from the Kennedy Space Center in Florida at 1:32 pm on 7/16/1969, and the lunar module landed on the moon at 8:17 pm on 7/20/1969. The moon is about 250,000 miles away. What was the average speed of the Apollo 11 spacecraft during the trip? *arrow_forwardAccording to Lunar Laser Ranging experiment the average distance LM from the Earth to the Moon is approximately 3.92 x 105 km. The Moon orbits the Earth and completes one revolution relative to the stars in approximately 27.5 days (a sidereal month). Calculate the orbital velocity of the Moon in m/s. Answer: Choose...arrow_forward
- A total solar eclipse occurs when the Moon moves between the Earth and the Sun and completely blocks out the Sun. This phenomenon is very spectacular and attracts people from all cultures. However, total solar eclipses can also take place on other planets of the Solar System. Determine for each of the following moons if they can create a total solar eclipse on their planet. Moon Radius Distance to Planet Planet Distance to the Sun Phobos 11 km Callisto 2410 km 9376 km Mars 228 x 10° km 1.883 x 10° km Jupiter 779 x 10° km 1433 x 10° km 2875 x 10° km Titan 2574 km 1.222 x 106 km Saturn Oberon 761 km 0.584 x 10° km Uranus Note: The radius of the Sun is 696 x 10° km.arrow_forwardHow far away is the moon from Earth? DON'T ANSWER!arrow_forwardA total solar eclipse occurs when the Moon moves between the Earth and the Sun and completely blocks out the Sun. This phenomenon is very spectacular and attracts people from all cultures. However, total solar eclipses can also take place on other planets of the Solar System. Determine for each of the following moons if they can create a total solar eclipse on their planet. Radius Distance to Planet Planet Distance to the Sun 228 x 10° km Moon Phobos 11 km Callisto 2410 km 9376 km Mars 1.883 x 106 km Jupiter 779 × 10° km Titan 2574 km 1.222 x 106 km Saturn 1433 x 106 km Oberon 761 km 0.584 x 106 km 2875 x 10° km Uranus Note: The radius of the Sun is 696 x 1o³ km.arrow_forward
- Sam is an astronomer on planet Hua, which orbits the distant star Barnard. It has recently been accepted that Hua is spherical in shape, although its exact size is unknown. While studying in the library, in the city of Joy, Sam learns that during equinox, Barnard is directly overhead in the city of Bar, located 1500.0 km north of his location. On the equinox, Sam goes outside and measures the altitude of Barnard at 83 degrees. What is the radius of Hua in km?arrow_forwardAccording to Lunar Laser Ranging experiments the average distance L M from the Earth to the Moon is approximately 3.85 × 105 km. The Moon orbits the Earth and completes one revolution in approximately 27.5 days (a sidereal month). Calculate mass of the Eartharrow_forwardWhile looking through the Mt. Palomar telescope, you discover a large planetary object orbited by a single moon. The moon orbits the planet every 7.35 hours with the centers of the two objects separated by a distance roughly 2.25 times the radius of the planet. Fellow scientists speculate that the planet is made of mostly iron. In fact, the media has dubbed it the ''Iron Planet'' and NASA has even named it Planet Hephaestus after the Greek god of iron. But you have your doubts. Assuming the planet is spherical and the orbit circular, calculate the density of Planet Hephaestus.arrow_forward
- You and your friend are traveling the world and are currently in a city located precisely on the Earth's equator. You are staying in separate rooms at a fancy skyscraper hotel that is 50 floors tall. Your friend's room is several floors above yours. Your rooms are on the same side of the building and both of you have the same clear view of the horizon, which appears featureless and smooth because of a very flat desert. Through the window of your room, you watch the sunset over the smooth horizon from a height of 28 m above the ground, and you see the top of the Sun disappear at time t1 on your watch. In his room, your sees the Sun disappear at a later time t2, as measured in his watch, which is perfectly synchronized with yours. Assuming that the Earth has a radius of 6378 km and that it completes a full revolution around its axis in 23 hours, 56 minutes, and 4 seconds, determine the time interval friend watches the sunset from a height of 104m above the ground, and At = t2 – t1…arrow_forwardWhat arc length does the Earth travel in a three month period in its nearly circular orbit about the sun with a radius of 1.5 x 10^(11) m?Required to answer. Single choice.arrow_forwardProblem A.3: Total Solar Eclipse A total solar eclipse occurs when the Moon moves between the Earth and the Sun and completely blocks out the Sun. This phenomenon is very spectacular and attracts people from all cultures. However, total solar eclipses can also take place on other planets of the Solar System. Determine for each of the following moons if they can create a total solar eclipse on their planet. Мoon Radius Distance to Planet Planet Distance to the Sun Phobos 11 km 9376 km Mars 228 x 106 km Callisto 2410 km 1.883 x 106 km Jupiter 779 x 106 km Titan 2574 km 1.222 x 106 km Saturn 1433 x 106 km Oberon 761 km 0.584 x 106 km Uranus 2875 x 106 km Note: The radius of the Sun is 696 × 10³ km.arrow_forward
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