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

Author Question: Most comets spend the majority of their time beyond the orbit of ________, yet many of them have ... (Read 93 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jul 27, 2018
Most comets spend the majority of their time beyond the orbit of ________, yet many of them have perihelions very close to the Sun.
 
  Fill in the blank(s) with correct word

Question 2

What makes us think that the star system Cygnus X-1 contains a black hole?
 
  A) It emits X-rays characteristic of an accretion disk, but the unseen star in the system is too massive to be a neutron star.
  B) No light is emitted from this star system, so it must contain a black hole.
  C) The fact that we see strong X-ray emission tells us that the system must contain a black hole.
  D) Cygnus X-1 is a powerful X-ray burster, so it must contain a black hole.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meganmoser117

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Jul 27, 2018
Answer to Question 1

Pluto

Answer to Question 2

A


nramada

  • Hero Member
  • *****
  • Posts: 580
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


meganmoser117

  • Sr. Member
  • ****
  • Posts: 303
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Principles of time management Principles of time management
In middle childhood, children spend increasing amounts of time with peers and friends. In middle childhood, children spend increasing amounts of time with peers and friends.
Using your fingertips at the edge of the eye orbit, apply L stroke down to chin and back toward the ... Using your fingertips at the edge of the eye orbit, apply L stroke down to chin and back toward the ...
Magnitude of Geologic Time Magnitude of Geologic Time
A clock is showing the time as exactly 3:00 p.m. and 25 s. A clock is showing the time as exactly 3:00 p.m. and 25 s.
Energy in a Circular Orbit Energy in a Circular Orbit
Video: Brain Lobes Animation

For a complete list of videos, visit our video library