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Author Question: The remaining core of a planetary nebula is called a _______________. a. white dwarf b. neutron ... (Read 38 times)

vHAUNG6011

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on: Jul 28, 2018
The remaining core of a planetary nebula is called a _______________.
 a. white dwarf
  b. neutron star
  c. black hole
  d. red giant

Question 2

A doorbell has an input voltage of 120 V. A transformer that steps the voltage down to 12 V has 500 turns on its primary. What is the number of turns on the secondary?


popopong

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Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

50 turns


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