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

Author Question: Ninety percent of all normal stars in a Hertzsprung-Russell (H-R) diagram are: A) in the giant ... (Read 133 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Jul 27, 2018
Ninety percent of all normal stars in a Hertzsprung-Russell (H-R) diagram are:
 
  A) in the giant region.
  B) in the supergiant region.
  C) on the random sequence.
  D) on the main sequence.

Question 2

Which of the following systems cannot be analyzed as a visual binary?
 
  A) Binary stars that are separately visible in a telescope
  B) Binary stars that are about 2 AU apart
  C) Binary star systems having orbital periods of hundreds or thousands of years
  D) Binary stars orbiting so close to each other that they are not visible as separate stars


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


go.lag

  • Hero Member
  • *****
  • Posts: 667
Reply #2 on: Jul 27, 2018
Thanks


xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Grizzled giant squirrel (Ratufa macroura) of the Ratufinae Grizzled giant squirrel (Ratufa macroura) of the Ratufinae
Summation of Heart Sounds, Normal S2 Summation of Heart Sounds, Normal S2
(A) Normal spongy bone. (B) Spongy bone with osteoporosis, which is characterized by a loss of bone (A) Normal spongy bone. (B) Spongy bone with osteoporosis, which is characterized by a loss of bone
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
(a) In normal nerve conduction, sodium ions (Na+) enter the sodium channels along a neuron and ... (a) In normal nerve conduction, sodium ions (Na+) enter the sodium channels along a neuron and ...
Giant Puff Ball Giant Puff Ball
Video: Metabolic Rate, Heat and Thermoregulation - response to heat and cold stresses

For a complete list of videos, visit our video library