This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following air pollutants is emitted mainly by the automobile? a. particulates b. ... (Read 83 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ApricotDream

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

B


rachel9

  • Sr. Member
  • ****
  • Posts: 495
Reply #2 on: Jul 28, 2018
Thanks


ApricotDream

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen
Intensity and Wavelengths of Emitted Radiation Intensity and Wavelengths of Emitted Radiation
Atmospheric Pollutants Atmospheric Pollutants
Long-wave energy flux is emitted from Earth Long-wave energy flux is emitted from Earth
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ... What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ...
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ... What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ...
Video: Types of Burns

For a complete list of videos, visit our video library