The Hubble time is expressed as A) H D. B) D/v. C) 1/H. D) H T. E) the critical ...

Author Question: The Hubble time is expressed as A) H D. B) D/v. C) 1/H. D) H T. E) the critical ... (Read 86 times)

CQXA

Hero Member
Posts: 546

on: Jul 27, 2018

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

Reply #1 on: Jul 27, 2018

Answer to Question 1

C

Answer to Question 2

C

Need homework help now?

Ask unlimited questions for free

Ask a Question

CQXA

Hero Member
Posts: 546

Reply #2 on: Jul 27, 2018

Thanks

whitcassie

Sr. Member
Posts: 298

Reply #3 on: Jul 27, 2018

Welcome

« previous next »

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.