« previous next »

Author Question: Explain why galaxy-galaxy interactions are far more common than star-star interactions. What will ... (Read 24 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jul 27, 2018
Explain why galaxy-galaxy interactions are far more common than star-star interactions.
 
  What will be an ideal response?

Question 2

Harlow Shapley mapped the Milky Way using the period-luminosity relationship for RR Lyrae stars.
 
  Indicate whether the statement is true or false


popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 27, 2018
Answer to Question 1

Galaxies are much closer together, relative to their size, than stars are. If the Sun were made the size of a grapefruit in New York, the nearest star would be on the other side of the continent. However, if the Milky Way (or any other galaxy) were made the size of a grapefruit, there would likely be another galaxy within a few feet of it. Thus, galaxy interactions are far more common than star-star interactions and must be taken into account when considering galaxy evolution.

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

The Eastern Banjo Frog is a common frog species across eastern Australia. The Eastern Banjo Frog is a common frog species across eastern Australia.
Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th
The pH of common substances. The pH of common substances.
Common Signs and Symptoms of Respiratory Diseases Common Signs and Symptoms of Respiratory Diseases
Interactions of Light and Matter Interactions of Light and Matter
Common Prefixes Cont. Common Prefixes Cont.
Video: The pH scale - Strong acids and Weak acids

For a complete list of videos, visit our video library