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

Author Question: What is the distinguishing characteristic of what we call ordinary matter (such as the matter that ... (Read 132 times)

newbem

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
What is the distinguishing characteristic of what we call ordinary matter (such as the matter that makes up stars, planets, and people)?
 
  A) It is made of subatomic particles that scientists call WIMPs.
  B) It emits a great deal of light.
  C) It consists of atoms or ions with nuclei made from protons and neutrons.
  D) It can attract other matter through the force of gravity.

Question 2

Which of the following properties cannot be determined from a spectrum of a star?
 
  A) speed perpendicular to my line of sight B) surface temperature
  C) speed towards me or away from me D) chemical composition


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


newbem

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Gracias!

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Diagram of a flagellate stramenopile cell, showing characteristic flagellar hairs. Diagram of a flagellate stramenopile cell, showing characteristic flagellar hairs.
Grey matter and white matter in the CNS. Grey matter and white matter in the CNS.
Cerebral Gray Matter and Schizophrenia Cerebral Gray Matter and Schizophrenia
Medial view of tracts revealed by removing gray matter from a midsagittal section Medial view of tracts revealed by removing gray matter from a midsagittal section
(a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h (a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h
Video: Gas exchange - driving force

For a complete list of videos, visit our video library