What kind of plate boundary separates the South American Plate from the African Plate?

What will be an ideal response?


Answer: A divergent boundary. The Mid-Atlantic Ridge, a spreading center in the Atlantic Ocean, separates the two continents.

Physics & Space Science

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Which plate boundary has the lowest earthquake frequency?

Physics & Space Science

A large water storage container is filled to a depth of 3.0 m. The volume above the water is filled with air. In order to pump the water from the container, the air pressure in the container is increased by 3.0 105 N/m2 . What happens to the pressure in the water at a depth of 1.0 m when the air pressure is increased?

a. Nothing, it is still at a depth of 1.0 m and the pressure in the water depends only on the depth. b. It increases by 1.0 105 N/m2, since it is at 1/3 the depth of the water. c. It increases by 2.0 105 N/m2, since it is at 2/3 the depth from the bottom of the container. d. It increases by 3.0 105 N/m2. e. It increases by 3.0 105 N/m2 + 9.8 103 N/m2 since it is 1.0 m deep in the water.

Physics & Space Science

A very massive body A and a less massive body B move toward each other under the influence of gravity. Compared to the force on A, the force on B is

1) greater. 2) the same. 3) less. As A and B get closer and closer, each experiences an increase in 4) velocity. 5) acceleration. 6) force. 7) all of these. 8) none of these.

Physics & Space Science

An electron with a charge value of 1.6 × 10^?19 C is moving in the presence of an electric field of 400 N/C. What force does the electron experience?

a. 8.0E–21 N b. 6.4E–22 N c. 6.4E–17 N d. 4.0E+17 N e. 1.6E–17 N

Physics & Space Science