« previous next »

Author Question: The search for life in the solar system that is similar to life on Earth is essentially a search for ... (Read 118 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565
on: Jul 27, 2018
The search for life in the solar system that is similar to life on Earth is essentially a search for
 
  A) organic molecules
  B) liquid water
  C) molecular oxygen
  D) energy sources

Question 2

Why does light seem to go straight through an open doorway whereas sound seems to spread out when it goes through the same doorway?
 
  What will be an ideal response?


Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

It has to do with the relative sizes of their wavelengths. The wavelength of light is << opening size so very small diffraction; sound wavelengths are >> opening so diffraction is significant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

An example of a two-component regulatory system in bacteria An example of a two-component regulatory system in bacteria
The Many Faces of Life The Many Faces of Life
Relationship of the conduction system to an ECG strip. Relationship of the conduction system to an ECG strip.
Willem de Zwart: Still Life with Apples in a Delft Blue Bowl, 1880–1890 Willem de Zwart: Still Life with Apples in a Delft Blue Bowl, 1880–1890
Selected Central Nervous System Neurotransmitters and Their Functions Selected Central Nervous System Neurotransmitters and Their Functions
The Digestive System The Digestive System
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library