Author Question: The Greek astronomer who assigned the stars to six magnitudes was named ______________. Fill in the ... (Read 80 times)

sammy

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The Greek astronomer who assigned the stars to six magnitudes was named ______________.
 Fill in the blank(s) with correct word

Question 2

When the energy state of an atom changes by E, the frequency of the photon emitted or absorbed is calculated by dividing E by ______________.
 Fill in the blank(s) with correct word



jxjsniuniu

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Answer to Question 1

Hipparchus

Answer to Question 2

h, or Planck's constant



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