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The magnetic field of an electromagnetic wave in a vacuum is Bz=(2.5 microT)Sin(1.9*10^7 x-2(3.14)ft), where x is in m and t is in s.
What is the wave's wavelength?
What is the wave's frequency?
What is the wave's electric field amplitude?
Physics, Academics
How are chemical and physical changes different. What are some demonstrations that you might do to help your students differentiate between a chemical and physical change?
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