This topic contains a solution. Click here to go to the answer

Author Question: How fast do tectonic plates move on Earth? A) quite fast, but only during earthquakes B) a few ... (Read 133 times)

bobthebuilder

  • Hero Member
  • *****
  • Posts: 567
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
Answer to Question 1

C

Answer to Question 2

A




bobthebuilder

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
Wow, this really help


ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

For a complete list of videos, visit our video library