« 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 89 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?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Similar traits may not be homologous Similar traits may not be homologous
Digestive System Digestive System
Effects of Earth’s Changing Orientation: Solar Angle Effects of Earth’s Changing Orientation: Solar Angle
The Central Nervous System Includes the Brain and Spinal Cord The Central Nervous System Includes the Brain and Spinal Cord
Respiratory system of a bird. Respiratory system of a bird.
Half-life explained Half-life explained
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library