« previous next »

Author Question: A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of ... (Read 73 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

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.

A small ecosystem. A small ecosystem.
The Green Pygmy Goose (Nettapus pulchellus) is a small perching duck which breeds in southern New Gu The Green Pygmy Goose (Nettapus pulchellus) is a small perching duck which breeds in southern New Gu
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to
Small local hydroelectric power generators have more future potential Small local hydroelectric power generators have more future potential
Speed of Light in Different Mediums Speed of Light in Different Mediums
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library