This topic contains a solution. Click here to go to the answer

Author Question: Pulsars were discovered because they _____. a. provide the energy to ionize supernova remnants b. ... (Read 71 times)

j.rubin

  • Hero Member
  • *****
  • Posts: 557
Pulsars were discovered because they _____.
 
  a. provide the energy to ionize supernova remnants
 b. radiate gravitational waves
 c. absorb matter from a binary companion through an accretion disk
 d. emit short, regular bursts of radiation
 e. undergo nova eruptions on a regular period of a few years

Question 2

Whose geocentric model of the Universe dominated astronomy for 2,000 years?
 
  a. Kepler
 b. Copernicus
  c. Aristotle
 d. Galileo
 e. Ptolemy



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ddddd

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

d

Answer to Question 2

c




j.rubin

  • Member
  • Posts: 557
Reply 2 on: Jul 27, 2018
Wow, this really help


adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

For a complete list of videos, visit our video library