Author Question: An X-ray burster occurs in a pulsar when ____. a. accreted helium suddenly fuses in a nova-like ... (Read 51 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
An X-ray burster occurs in a pulsar when ____.
 
  a. accreted helium suddenly fuses in a nova-like explosion
 b. the Chandrasekhar limit is exceeded and the object collapses
 c. carbon deflagration destroys the object
 d. it merges with a binary companion
 e. hydrogen fusion ignites in an accretion disk around it

Question 2

Which model did Galileo disprove by discovering the transit of Venus?
 
  a. Ptolemaic
 b. Copernican
  c. Aristotelian
  d. Plutonic
 e. Kepler



T4T

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

a

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

For a complete list of videos, visit our video library