Author Question: A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of ... (Read 130 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of the circle of light on the surface, from which light emerges from the water? (nwater = 1.333).
 a. 0.77 m
  c. 1.13 m
  b. 0.57 m
  d. 1.43 m

Question 2

When a wool blanket is used to keep warm, what is the primary insulating material?
 a. wool
  b. air
  c. the trim around the edge of the blanket
  d. a thin layer of aluminum foil (usually not apparent) inside the blanket



pikon

  • Sr. Member
  • ****
  • Posts: 361
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

For a complete list of videos, visit our video library