« previous next »

Author Question: If the Earth's rotational axis were to be perpendicular to the ecliptic, seasonal variations on the ... (Read 116 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jul 27, 2018
If the Earth's rotational axis were to be perpendicular to the ecliptic, seasonal variations on the Earth would
 
  a. be non-existent.
  b. remain the same as they are at now.
  c. have the same severity but each season would last twice as long.
  d. be much more severe.

Question 2

What is the total mass of a binary star system with P = 20 yr and a = 10 AU?
 
  a. 2 solar masses
  b. 2.5 solar masses
  c. 0.5 solar mass
  d. 80 solar masses
  e. 0.4 solar mass


Jane

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina. An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
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
Earth Atmosphere Earth Atmosphere
Happy earth day jk kid drawing Happy earth day jk kid drawing
Video: Heart sounds

For a complete list of videos, visit our video library