The area of a telescope lens is 6.930 × 10' mm². (a) What is the area in square feet (ft")? (Answer in scientific notation.) (b) If it takes a technician 36.0 s to polish 1.53 × 10“ mm“, how long does it take her to polish the entire lens? (answer in s)

The area of a telescope lens is 6.930 × 10' mm². (a) What is the area in square feet (ft")? (Answer in scientific notation.) (b) If it takes a technician 36.0 s to polish 1.53 × 10“ mm“, how long does it take her to polish the entire lens? (answer in s)

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter3: Matter-properties And Changes

Section: Chapter Questions

Problem 40A

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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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I need some help with this chemistry problem

The area of a telescope lens is 6.930 × 10 mm².
(a) What is the area in square feet (ft")? (Answer in scientific notation.)
(b) If it takes a technician 36.0 s to polish 1.53 x 10ʻ mm", how long does it
take her to polish the entire lens? (answer in s)

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