Look at the model that shows 1/2=3/6. How does the number of parts in the whole affect the number of parts that are shaded? Explain.

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Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?

2. show that isometries of euclidean spaces preserve derivatives of vector fields.