Author Question: What type of galaxy was observed by Tully and Fisher? ... (Read 70 times)

fahad

  • Hero Member
  • *****
  • Posts: 570
What type of galaxy was observed by Tully and Fisher?

Question 2

A long solenoid with closely spaced turns carries electric current. Each turn of wire exerts:
  1.an attractive force on the next adjacent turn.
  2.a repulsive force on the next adjacent turn.
  3.zero force on the next adjacent turn.
  4.either an attractive or a repulsive force on the next turn, depending on the direction of current in the solenoid.



choc0chan

  • Sr. Member
  • ****
  • Posts: 362
Answer to Question 1

A spiral galaxy.

Answer to Question 2

1



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

fahad

  • Hero Member
  • *****
  • Posts: 570
Both answers were spot on, thank you once again



choc0chan

  • Sr. Member
  • ****
  • Posts: 362
Great! Please up vote :D



 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

For a complete list of videos, visit our video library