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

Author Question: How fast do tectonic plates move on Earth? A) quite fast, but only during earthquakes B) a few ... (Read 132 times)

bobthebuilder

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
How fast do tectonic plates move on Earth?
 
  A) quite fast, but only during earthquakes
  B) a few centimeters per century
  C) a few centimeters per year
  D) a few kilometers per century
  E) about 1 mile per hour

Question 2

A planet is orbiting a star. Which of the following statements is true for the acceleration and gravitational forces experienced by the star and the planet?
 
  A) The acceleration of the planet is much more than the acceleration of the star, but the force on the star is the same but opposite the force on the planet.
  B) The acceleration of the planet is much more than the acceleration of the star, and the force on the planet is much more than the force on the star.
  C) The force on the star is much smaller than the force on the planet, but the accelerations are about equal.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jordin Calloway

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


bobthebuilder

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

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 eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Plnaet Earth Plnaet Earth
Earth’s Spheres Earth’s Spheres
Earth emits radiation back out to space from all surfaces, both day and night Earth emits radiation back out to space from all surfaces, both day and night
Earth’s Major Lithospheric Plates Earth’s Major Lithospheric Plates
Cancer cells can move to new locations in the body, a process called metastasis Cancer cells can move to new locations in the body, a process called metastasis
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ... Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Video: Causes of Angina

For a complete list of videos, visit our video library