Answered: The area of a telescope lens is 7903…

The area of a telescope lens is 7903 mm² (a) What is the areain square feet (ft² )? (b) If it takes a technician 45 s to polish135 mm² , how long does it take her to polish the entire lens?

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 15GQ

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

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The area of a telescope lens is 7903 mm² (a) What is the areain square feet (ft² )? (b) If it takes a technician 45 s to polish135 mm² , how long does it take her to polish the entire lens?

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