« previous next »

Author Question: At present, the formation of the solar system is believed by most astronomers to have begun with a ... (Read 30 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
on: Jul 28, 2018
At present, the formation of the solar system is believed by most astronomers to have begun with a large, swirling volume of cold gas and dust called the ______________ nebula.
 a. condensation
  b. primordial
  c. accretion
  d. celestial

Question 2

As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn.
 Fill in the blank(s) with correct word


sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

lower


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Mechanoreceptors in the lateral line system that detect changes in water movement. Mechanoreceptors in the lateral line system that detect changes in water movement.
Can We Improve the Tsunami Warning System Can We Improve the Tsunami Warning System
Divisions of the nervous system Divisions of the nervous system
Process Flow Diagram of a Dual-Stage Pressure System Process Flow Diagram of a Dual-Stage Pressure System
Our planet absorbs solar radiation Our planet absorbs solar radiation
Complement System Complement System
Video: Cataract

For a complete list of videos, visit our video library