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Author Question: The planetary model of the atom is a more detailed, or sophisticated, model than the simpler Greek ... (Read 200 times)

sjones

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on: Jul 29, 2018
The planetary model of the atom is a more detailed, or sophisticated, model than the simpler Greek model of the atom. The planetary model is useful because, unlike the Greek model, it can explain
 
  A) the differences between the three states of matter.
  B) electrical phenomena such as electric current.
  C) the microscopic meaning of thermal energy.
  D) certain subtle quantum effects.
  E) gas pressure, including air pressure.

Question 2

Find the orbital speed of an ice cube in the rings of Saturn. The mass of Saturn is 5.68 x 1026 kg, and use an orbital radius of 1.00 x 105 km. (G = 6.67  10-11 N  m2/kg2 )
 
  A) 19.5 km/s
  B) 27.5 km/s
  C) 13.8 km/s
  D) 9.40 km/s


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ecabral0

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

A


sjones

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

juliaf

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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