Author Question: The Hubble time is expressed as A) H D. B) D/v. C) 1/H. D) H T. E) the critical ... (Read 88 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
The Hubble time is expressed as
 
  A) H  D.
  B) D/v.
  C) 1/H.
  D) H  T.
  E) the critical density/H.

Question 2

According to Kepler's Second Law of planetary motion, a planet moves fastest in its orbit when it is
 
  A) undergoing retrograde motion
  B) in between perihelion and aphelion
  C) at perihelion
  D) at aphelion



whitcassie

  • Sr. Member
  • ****
  • Posts: 298
Answer to Question 1

C

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

For a complete list of videos, visit our video library