Pearson eText Conceptual Integrated Science -- Instant Access (Pearson+)
3rd Edition
ISBN: 9780135626573
Author: Paul Hewitt, Suzanne Lyons
Publisher: PEARSON+
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1, Problem 22TS
Eratosthenes measured the height of the vertical pillar in Alexandria to be 8 times greater than the length of the shadow it cast at high noon. So the ratio of (length of shadow)/(height of pillar) is 1/8. If the sun were lower in the sky, would the ratio be smaller or larger?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If city is located in 2.8° north latitude and 46.0° east longitude. From there, you want to fly to a city in 7° north latitude and 52° east longitude. How much is the
arc length of the big circle at 11000 m when the earth's radius is 6370 km?
The arc length is 14223 km.
Give your answer rounded to one kilmetre.
Your last answer was interpreted as follows: 14223
XAnswer is incorrect.
Keep centre of Earth as origin and define vectors to cities. Try again.
I measured the angular separation of Jupiter's moons in arcminutes/arcseconds and converted this angle to radians. The conversion factor for degrees to radians was 57.3 degrees per radian. Which unit of measurement is larger? 1 degree or 1 radian?
The shadow cast by a vertical pillar in Alexandria at noon during the summer solstice is found to be 1/8 the height of the pillar. The distance between Alexandria and Syene is 1/8 Earth’s radius. Is there a geometric connection between these two 1-to-8 ratios?
Chapter 1 Solutions
Pearson eText Conceptual Integrated Science -- Instant Access (Pearson+)
Ch. 1 - What launched the era of modern science in the...Ch. 1 - Why do we believe that focusing on math too early...Ch. 1 - Specifically, what do we mean when we say that a...Ch. 1 - What is the test for whether or not a hypothesis...Ch. 1 - How did Galileo disprove Aristotles idea that...Ch. 1 - Distinguish among a scientific fact, a hypothesis,...Ch. 1 - How does the definition of the world theory differ...Ch. 1 - Your friend says that scientific theories cannot...Ch. 1 - What are the two domains of science and religion?Ch. 1 - Why must one not have to choose between science...
Ch. 1 - Clearly distinguish between science and...Ch. 1 - In what sense does physics underlie chemistry?Ch. 1 - In what sense is biology more complex than the...Ch. 1 - What is the value of studying integrated science,...Ch. 1 - How does the Aurora borealis relate to the field...Ch. 1 - Why is the aurora borealis best seen in winter...Ch. 1 - If the Suns rays were at 450 to a vertical pillar,...Ch. 1 - Eratosthenes measured the height of the vertical...Ch. 1 - Examine the nearly similar small and large green...Ch. 1 - Knowing and using Earths radius, show that the...Ch. 1 - If the angle between the two verticals extended to...Ch. 1 - Are the various branches of science separate, or...Ch. 1 - In what way is the printing press like the intenet...Ch. 1 - Which of the following are scientific hypotheses?...Ch. 1 - If earth were smaller than it is, but...Ch. 1 - Prob. 30TECh. 1 - Discuss the value Galileo placed on...Ch. 1 - What do science, art, and religion have in common?...Ch. 1 - If the tree that casts solar images around Lillian...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The ratio WQ at constant pressure.
Physics (5th Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective
The spring constant of Super Bungee.
College Physics: A Strategic Approach (3rd Edition)
Which cart takes longer to travel between the two marks? Explain your reasoning.
Tutorials in Introductory Physics
70. Oxygen, O2, is certainly good for you. Does it follow that if small amounts of oxygen are good for you, the...
Conceptual Physical Science (6th Edition)
Knowledge Booster
Learn more about
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
- The earth revolves around the sun in exactly 365 1/4 days which is equivalent to 1 year. To make up for the loss of 1/4 day, the calendar was adjusted so that we have a leap year for every 4 years. If the earth were to speed in its motion slightly so that a year would be completed in exactly 365 days and 6 hours, how often would we need to have a leap year?arrow_forwardHow would Eratosthenes’s estimate have been different if the sun were actually closer to Earth?arrow_forwardThe number of hours of daylight in Boston is given by y=3sin [2π(x - 79)/365] + 12, where x is the number of days after January 1. Solve, Within a year, when does Boston have 13.5 hours of daylight? Give your answer in days after January 1 and round to the nearest day.arrow_forward
- The average distance between the Sun and Mars is 2.3×1011m2.3×1011m. F = ? Express your answer with the appropriate units.arrow_forwardThe Earth is about 12,000 km in diameter. It is therefore how many orders of magnitude wider than you are tall? (i.e., the Earth’s diameter is how many times larger than your height (give an order-of-magnitude estimate)?) (I am 5'2")arrow_forwardWhat ancient evidence was found for a spherical Earth? (This question will show a checkbox next to each answer, and you must select ALL the correct answers and none of the wrong ones) the different angles of equinox shadows measured at cities in Egypt by Eratosthenes the curved shape of Earth's lunar eclipse shadow Circumnavigation of the earth the subtle curvature of the horizon sighted by the Greek astronomer, Metaxa The Pythagorean Theoremarrow_forward
- Suppose, we recently discovered a new planet named Concordia. If for 15 degrees difference, the distance between Cansae City and and Cantabrigia City would have been 6050 stadia. According to Erasthosthenes' calculation, what would have been the circumference of Concordia? 5.45E5 stadia 2.45E5 stadia 4.45E5 stadia 1.45E5 stadia 3.45E5 stadiaarrow_forwardPlease give explanation and answer to this question.arrow_forwardWhy did Pythagoras believe that Earth should be spherical?arrow_forward
- Which of the following is not a contributing factor in causing eclipses? (17.2) (a) the rotation of the Earth about its axis (b) the inclination of the Moons orbit (c) the varying distance between the Earth and the Moon (d) the varying distance between the Earth and the Sunarrow_forwardSuppose Eratosthenes’ results for Earth’s circumference were quite accurate. If the diameter of Earth is 12,740 km, what is the length of his stadium in kilometers?arrow_forwardWhich is the asterism and which is the constellation: Orion and Orions belt? Name another asterism/constellation combination.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStax
Stars and Galaxies (MindTap Course List)PhysicsISBN:9781337399944Author:Michael A. SeedsPublisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)PhysicsISBN:9781337399920Author:Michael A. Seeds, Dana BackmanPublisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
Time Dilation - Einstein's Theory Of Relativity Explained!; Author: Science ABC;https://www.youtube.com/watch?v=yuD34tEpRFw;License: Standard YouTube License, CC-BY