UNIVERSE (LOOSELEAF):STARS+GALAXIES
UNIVERSE (LOOSELEAF):STARS+GALAXIES
6th Edition
ISBN: 9781319115043
Author: Freedman
Publisher: MAC HIGHER
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Chapter 1, Problem 22Q
To determine

To define:

Exponent and discuss usage of exponents to write the power of ten.

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Show your complete and detailed solution. Round off your answers to 4 decimal digits and box your final answers.
Write the correct numerals for the following situations: Example: You have two decimeters, and one meter (in meters) = 1.2m a. You have two kilograms, four decagrams, and three grams (in grams) b. You have three hectoliters, two centiliters, and one microliter (in liters) c. You have three centimeters, two decimeters, and one millimeter (in meters) d. You have one kilogram, three decagrams, and two decigrams (in grams) e. You have four kilocalories and six Calories (in calories)
BACKGROUND An ingenious solution to the Earth's circumference occured in 230 BC. Eratosthenes, a Greek geographer, mathematician, music theorist, poet, astronomer, and philosopher, was reading in the Library of Alexandria when he noticed an account for a deep well near Syene (now Aswan), some distance to the south (800 km) in which at high noon on the longest day of the year the bottom of the well was fully illuminated by the Sun. Eratosthenes exclaimed "Ah-ah!" (or something like that), "I can solve for the circumference of the Earth!". In his mind's eye, Eratosthenes could see that at Syene, at the moment when the bottom of the well was fully lit, the Sun must have been at the Zenith (directly overhead). Yet he knew that at the same moment in Alexandria vertical objects (like a tower, pole) cast shadows. Here is the experiment perfomed by Eratosthenes (see the picture below). • He erected a vertical pole at Alexandria (A) and measured the angle of its shadow at the moment when the…
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