« 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 144 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?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

A soil surface crust that includes nitrogen-fixing, soil-enriching cyanobacteria. A soil surface crust that includes nitrogen-fixing, soil-enriching cyanobacteria.
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ... Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
Cell Surface Regulators Cell Surface Regulators
Resonance transfer of energy in a light-harvesting complex Resonance transfer of energy in a light-harvesting complex
Dash Warning Lights: Oil (Engine) Light Dash Warning Lights: Oil (Engine) Light
A microwave telescope “sees” microwave light coming from all directions in the sky… A microwave telescope “sees” microwave light coming from all directions in the sky…
Video: Fermentation pathways

For a complete list of videos, visit our video library