An important radiometric dating process is the decay of potassium-40 to ______________-40
Fill in the blank(s) with correct word
argon
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When you use CSS, you create a style sheet containing style ______.
A. determinations B. guidelines C. rules D. suggestions
The design of modern X-ray telescopes depends on
A) lenses made of germanium. B) the prime focus design, with mirrors made of iron. C) grazing incidence optics. D) achromatic lenses to keep the X-rays in focus. E) the Cassegrain design, with mirrors made of lead.
Red light with a wavelength of 650 nm travels from air into a liquid with an index of 1.33. What are the frequency and wavelength of the light in the liquid? (c = 3.0 × 108 m/s)
What will be an ideal response?
Hydrocarbons containing one or more benzene
rings are known as a) aromatic hydrocarbons. b) cycloalkane hydrocarbons. c) aliphatic hydrocarbons. d) synthetic hydrocarbons.