Magma that solidifies before reaching Earth's surface is called

A) intrusive igneous rock.
B) plutonic rock.
C) a pluton.
D) all of the above.


Answer: D

Physics & Space Science

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An electron, initially moving at 2.0 × 104 m/s along the +x-axis, experiences a constant acceleration of 1010 m/s2 in the +y direction. How far from its starting point is the electron after 4.0 × 10-6 seconds?

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Three resistors connected in parallel each carry currents labeled I1, I2, and I3 . Which of the following expresses the value of the total current IT in the combined system?

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A car is driven 1 200 m north at 20.0 m/s and then driven 1 600 m east at 25.0 m/s. What is the magnitude of the average velocity for this trip?

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Physics & Space Science