« previous next »

Author Question: Regions of compression that move at their own speed in the disk and are outlined by the spiral arms ... (Read 65 times)

rmenurse

  • Hero Member
  • *****
  • Posts: 513
on: Jul 27, 2018
Regions of compression that move at their own speed in the disk and are outlined by the spiral arms are _____________.
 
  Fill in the blank(s) with correct word

Question 2

The youngest stars in the Orion Nebula and other star-forming regions also show
 
  a. circumstellar disks.
  b. jets.
  c. circumstellar disks and jets.


smrerig

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 27, 2018
Answer to Question 1

density waves

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

The regions of the brain. The regions of the brain.
Regions of the abdomen and pelvis. Regions of the abdomen and pelvis.
If necessary, connect a battery charger to the battery before starting the compression test. It is ... If necessary, connect a battery charger to the battery before starting the compression test. It is ...
With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ... With the rocker arms contacting the base circle of the cam, insert a feeler gauge of the specified ...
Spring for the Crane and Deer. Beginning position: Legs straight and together, arms at sides of ... Spring for the Crane and Deer. Beginning position: Legs straight and together, arms at sides of ...
A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ... A tsunami (tidal wave) traveling across deep water can have a speed of 750 km/h k m / h and a ...
Video: Introduction to Autism

For a complete list of videos, visit our video library