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

Author Question: X-ray bursters occur in binary star systems. The two types of stars that must be present to make up ... (Read 68 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jul 27, 2018
X-ray bursters occur in binary star systems. The two types of stars that must be present to make up such an object are
 
  A) a contact binary system of two red giants.
  B) a white dwarf and a neutron star.
  C) a white dwarf and a main-sequence star.
  D) two neutron stars in a mass transfer binary.
  E) a main-sequence or giant star and a neutron star in a mass transfer binary.

Question 2

When an electron moves from a lower to a higher energy state, a photon is ________.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dlook33

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

absorbed


deesands

  • Hero Member
  • *****
  • Posts: 514
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


dlook33

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Examples of cell types derived from ectoderm, mesoderm, and endoderm. Examples of cell types derived from ectoderm, mesoderm, and endoderm.
Darwin’s finches: Adaptive radiation of bill types. Darwin’s finches: Adaptive radiation of bill types.
Types of Ore Deposits—Sedimentary Types of Ore Deposits—Sedimentary
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Types of Psoriasis Types of Psoriasis
Functional divisions of vertebrate nervous systems Functional divisions of vertebrate nervous systems
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library