This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain how a black surface such as the Solar Two tower can appear white. What will be an ideal ... (Read 32 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jul 28, 2018
Explain how a black surface such as the Solar Two tower can appear white.
 
  What will be an ideal response?

Question 2

When using solar energy systems, why are backup systems necessary to have? Explain.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pangili4

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 28, 2018
Answer to Question 1

Black surfaces absorb the radiation incident on them. If the radiation is too
intense, it overwhelms the surface and the majority can be reflected. In this case, it can
appear white.

Answer to Question 2

Sometimes the Sun doesn't shine through clouds for days on end. This can
impact the output of solar hot water for household use. In addition, windmills depend on the
wind, which must be above a certain speed in order for the mill to generate electricity. If the
wind speed is below the threshold for substantial times, this can affect the availability of that
wind energy. In order to meet these exigencies, backup sources are necessary.


penguins

  • Member
  • Posts: 903
Reply 2 on: Jul 28, 2018
Excellent

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Gracias!

« previous next »
 

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?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

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?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Tri parti-colored (white, brown and black) guinea pig in its natural habitat. Tri parti-colored (white, brown and black) guinea pig in its natural habitat.
White Campion White Campion
Using a black light to spot leaks after adding dye to the oil. Using a black light to spot leaks after adding dye to the oil.
Ruins of the Anu Ziggurat and White Temple Ruins of the Anu Ziggurat and White Temple
Video: DNA close up Animation

For a complete list of videos, visit our video library