Author Question: What causes the radio pulses of a pulsar? A) The star vibrates. B) As the star spins, beams of ... (Read 53 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
What causes the radio pulses of a pulsar?
 
  A) The star vibrates.
  B) As the star spins, beams of radio radiation sweep through space. If one of the beams crosses Earth, we observe a pulse.
  C) The star undergoes periodic explosions of nuclear fusion that generate radio emission.
  D) The star's orbiting companion periodically eclipses the radio waves emitted by the main pulsar.
  E) A black hole near the star absorbs energy and re-emits it as radio waves.

Question 2

In the inner solar system, the largest surface features are found on the largest planets.
 
  Indicate whether the statement is true or false



yifu223

  • Sr. Member
  • ****
  • Posts: 302
Answer to Question 1

B

Answer to Question 2

FALSE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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.

For a complete list of videos, visit our video library