« previous next »

Author Question: Polaroid sunglasses help when skiing on snow on a sunny day by reducing the sunlight from the snow. ... (Read 72 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jul 28, 2018
Polaroid sunglasses help when skiing on snow on a sunny day by reducing the sunlight from the snow. This light from the snow has been polarized by:
 a. optical activity.
  c. reflection.
  b. selective absorption.
  d. double refraction.

Question 2

An interval of one Celsius degree is equivalent to an interval of:
 a. one Fahrenheit degree.
  c. 5/9 Fahrenheit degree.
  b. one kelvin.
  d. 5/9 kelvin.


xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity
Emperor penguins with their black and white plumage stand out against the snow and colonies Emperor penguins with their black and white plumage stand out against the snow and colonies
Snow Leopard - Showing teeth at Taronga Zoo, Australia Snow Leopard - Showing teeth at Taronga Zoo, Australia
Snow crystal Snow crystal
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
Reducing Radicals Reducing Radicals
Video: Generalized life cycles for plants and animals Animation

For a complete list of videos, visit our video library