Shield volcanoes are composed of

A) andesitic magma.
B) basaltic magma.
C) granitic magma.
D) silica-rich magma.


Answer: B

Physics & Space Science

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In A.D. 1054, Chinese astronomers observed the appearance of a new star, whose location is now occupied by

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A series RLC circuit has a 100-? resistor, 2.00-mH inductor and a 4.00-?F capacitor connected across a 120-V rms ac source at (1000/?) Hz. What is the power dissipated by the circuit?

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Consider the two situations shown in the figure below, in which there is no acceleration. In both cases the men pull with a force of magnitude F. How does the reading on the scale in part (i) of the figure relate to the reading on the scale in part (ii)?

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