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

Author Question: When a planet retrogrades, it appears to move westward for weeks at a time. Indicate whether the ... (Read 23 times)

notis

  • Hero Member
  • *****
  • Posts: 596
on: Jul 27, 2018
When a planet retrogrades, it appears to move westward for weeks at a time.
 
  Indicate whether the statement is true or false

Question 2

Which of these is the likely progenitor of a type I supernova?
 
  A) a mass-transfer binary, with the white dwarf already at 1.3 solar masses
  B) a contact binary, with the neutron star at 2.3 solar masses
  C) an evolved red giant which is just starting to make silicon in its core
  D) an evolved blue supergiant that is about to experience the helium flash
  E) a helium-neon white dwarf


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


notis

  • Hero Member
  • *****
  • Posts: 596
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim
Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ... Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ...
Healthier choices can be made when time is taken to read a nutrition label. Healthier choices can be made when time is taken to read a nutrition label.
Aggregates are people who happen to be in the same place at the same time. Aggregates are people who happen to be in the same place at the same time.
Human of the planet's net primary production and appropriation of NPP Human of the planet's net primary production and appropriation of NPP
Jim Croce - Time in a bottle - 1973 Jim Croce - Time in a bottle - 1973
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library