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Author Question: Two of your classmates, each 82 kg, are separated by 4 meters. The gravitational force of attraction ... (Read 102 times)

luminitza

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on: Jul 28, 2018
Two of your classmates, each 82 kg, are separated by 4 meters. The gravitational force of attraction between them in nano-newtons is
 a. 1.4 nN
  b. 0.3 nN
  c. 0.0 nN
  d. 41.2 nN
  e. 28.0 nN

Question 2

Balance the chemical equation: Bi2S3+ O2  Bi2O3 + SO2


mcarey591

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

e

Answer to Question 2

2Bi2S3 + 9O2 2Bi2O3 + 6SO2


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