This topic contains a solution. Click here to go to the answer

Author Question: Regarding the energy efficiency of incandescent and fluorescent bulbs, A) incandescent is more ... (Read 103 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
Regarding the energy efficiency of incandescent and fluorescent bulbs,
 
  A) incandescent is more efficient because the electric current heats the wire filament directly.
  B) incandescent is more efficient because it uses electric current, which is a highly efficient energy form.
  C) fluorescent is more efficient because it does not use an actual electric current (a flow of electrons).
  D) fluorescent is more efficient because very little heating is involved.
  E) the two types have roughly equal efficiencies.

Question 2

The ozone layer is our friend because
 
  A) it protects us from damaging ultraviolet radiation.
  B) it protects us from damaging infrared radiation.
  C) of the role it plays in keeping Earth warm.
  D) its electrical properties help to bend radio waves around the earth.
  E) it protects the earth from undergoing a harmful greenhouse effect.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

D

Answer to Question 2

A




cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Excellent

 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

For a complete list of videos, visit our video library