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

Author Question: Which of the following objects is not a close approximation of a thermal emitter? A) hot, thin ... (Read 122 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
Which of the following objects is not a close approximation of a thermal emitter?
 
  A) hot, thin gas
  B) a star
  C) a filament in a light bulb
  D) you
  E) a planet

Question 2

Approximately how long does it take light to travel across the diameter of the Milky Way?
 
  A) 27,000 years
  B) 100,000 years
  C) 200,000 years
  D) 1 million years


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Perkypinki

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


Mimi

  • Member
  • Posts: 542
Reply 2 on: Jul 27, 2018
:D TYSM

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Cougar - Close-up front face Cougar - Close-up front face
Three Close Binaries Three Close Binaries
Close-up view of Pluto's mountains, frozen plains and hazes Close-up view of Pluto's mountains, frozen plains and hazes
Place a towel or sheet over knee area. Use a thin barrier to protect skin from cold source. Place a towel or sheet over knee area. Use a thin barrier to protect skin from cold source.
A close relationship between greenhouse gas emissions and a country’s gross domestic product A close relationship between greenhouse gas emissions and a country’s gross domestic product
Two objects in a pulley on an inclined plane Two objects in a pulley on an inclined plane
Video: Muscle Twitch and Muscle Tension - Motor unit size and force

For a complete list of videos, visit our video library