« previous next »

Author Question: If the Earth's rotational axis were to be perpendicular to the ecliptic, seasonal variations on the ... (Read 114 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 most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

The Sun is the nearest star to Earth. The Sun is the nearest star to Earth.
Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Distance from Earth to Sun schematic Distance from Earth to Sun schematic
How to find the equation of a line that is perpendicular to a line passing through a point How to find the equation of a line that is perpendicular to a line passing through a point
Earth Atmosphere Earth Atmosphere
Precession of Earth Precession of Earth
Video: Digestion Animation

For a complete list of videos, visit our video library