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 58 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
Thanks for the timely response, appreciate it


carojassy25

  • Member
  • Posts: 299
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

For a complete list of videos, visit our video library