Answered: 1.Convert a density of 2.79 g/cm3 to…

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1.Convert a density of 2.79 g/cm3 to kg/cm3

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter14: Modern Cosmology

Section: Chapter Questions

Problem 13RQ

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Question

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1.Convert a density of 2.79 g/cm³ to kg/cm³

2. One light year is the distance traveled by light in a year. Convert one light year to meter using 3x10⁸m/s for the speed of light. (Hint; d=vt)

3.A density of 5400 kg/m³ is equal to g/cm³

4. Which statement is true?

a. PRECISE MEASUUREMENTS ARE ACCURATE

b.ACCURATE MEASUREMENTS ARE PRECISE

c.PRECISE MEASUREMNETS CAN BE INACCURATE

d.INACCURATE MEASUREMENTS CANNOT BE PRECISE

5.the components of vector Q are given as follow:

Qx=23.5m Qy=18.6m

a.38.4⁰ b. 47.9⁰ c.56.3⁰ d. 62⁰

Definition Definition Rate at which light travels, measured in a vacuum. The speed of light is a universal physical constant used in many areas of physics, most commonly denoted by the letter c . The value of the speed of light c = 299,792,458 m/s, but for most of the calculations, the value of the speed of light is approximated as c = 3 x 10 8 m/s.

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