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

Author Question: Which one of the methods below enables astronomers to measure the distance of a star near the Sun in ... (Read 92 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
Which one of the methods below enables astronomers to measure the distance of a star near the Sun in our galaxy?
 
  a. sound echoes knowing the speed of sound and time
  b. parallax using Earth's orbit
  c. human binocular vision
  d. Balmer series
  e. none of the above

Question 2

The ___________ of a black hole is the radius from a black hole at which the escape velocity is approximately equal to the speed of light.
 
  a. Roche limit
  b. Lagrangian point
  c. Chandraskhar limit
  d. Hubble radius
  e. event horizon


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

smrtceo

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

b

Answer to Question 2

e


sdfghj

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Excellent

gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

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

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Three chromatographic methods used in protein purification Three chromatographic methods used in protein purification
A crescent Moon and "star" A crescent Moon and "star"
Midpoint and Distance forumla Midpoint and Distance forumla
A goniometer is used to measure range of motion of the patient’s arm. A goniometer is used to measure range of motion of the patient’s arm.
Sample Items from the Brief Multidimensional Measure of Religiousness/Spirituality (BMMRS) Sample Items from the Brief Multidimensional Measure of Religiousness/Spirituality (BMMRS)
How to solve a distance, time, speed problem using linear algebra How to solve a distance, time, speed problem using linear algebra
Video: Interview with Person who has Panic Attacks

For a complete list of videos, visit our video library