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

Author Question: Four different compact fluorescent bulbs and their comparison to incandescent bulbs are advertised ... (Read 84 times)

KimWrice

  • Hero Member
  • *****
  • Posts: 579
Four different compact fluorescent bulbs and their comparison to incandescent bulbs are advertised as follows: a 42-W cfl produces the light of a 150-W incandescent, a 9-W cfl produces the light of a 40-W incandescent, a 23-W cfl produces the light of a 100-W incandescent,and a 13-W cfl produces the light of a 60-W incandescent. Which cfl produces the most light per watt, and which one produces the least? Assume true advertising
 a. the 13 W, the 42 W
  c. the 23 W, the 42 W
  b. the 9 W, the 23 W
  d. the 42 W, the 13 W

Question 2

Two equal charges, each Q, are separated by some distance. What third charge would need to be placed half way between the two charges so that the net force on each charge would be zero?
 a. -Q/8
  c. -Q/4
  b. -Q
  d. -Q/2



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcarey591

  • Sr. Member
  • ****
  • Posts: 365
Answer to Question 1

A

Answer to Question 2

C





 

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

For a complete list of videos, visit our video library