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Author Question: Which of the following air pollutants is emitted mainly by the automobile? a. particulates b. ... (Read 53 times)

rachel9

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on: Jul 28, 2018
Which of the following air pollutants is emitted mainly by the automobile?
 a. particulates
  b. carbon monoxide
  c. sulfur dioxides
  d. hydrocarbons
  e. nitrogen oxides

Question 2

A 5.0-kg mass is suspended by a string from the ceiling of an elevator that is moving upward with a speed which is decreasing at a constant rate of 2.0 m/s in each second. What is the tension in the string supporting the mass?
 a. 49 N
  b. 39 N
  c. 59 N
  d. 10 N
  e. 42 N


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ApricotDream

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

b

Answer to Question 2

B


rachel9

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Reply #2 on: Jul 28, 2018
Thanks


ApricotDream

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Reply #3 on: Jul 28, 2018
Welcome :)


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