« previous next »

Author Question: The Local Group of galaxies spans about 30 million light-years in diameter. Indicate whether the ... (Read 100 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Jul 27, 2018
The Local Group of galaxies spans about 30 million light-years in diameter.
 
  Indicate whether the statement is true or false

Question 2

Energy balance in the Sun refers to a balance between ________.
 
  A) the force of gravity pulling inward and the force due to pressure pushing outward
  B) the amount of energy the Sun radiates into space and the amount of energy that reaches Earth
  C) the rate at which fusion generates energy in the Sun's core and the rate at which the Sun's surface radiates energy into space
  D) the mass that the Sun loses each second and the amount of mass converted into energy each second


mfedorka

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

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

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m. Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m.
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens. The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Shaking. A form of coarse vibration to a muscle or muscle group. Shaking. A form of coarse vibration to a muscle or muscle group.
Apply light stroking with the palms from hip to ankles as a connecting and finishing technique. ... Apply light stroking with the palms from hip to ankles as a connecting and finishing technique. ...
Other countries are “Americanizing” their local culture’s diet Other countries are “Americanizing” their local culture’s diet
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library