Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they
A) contain a noticeable fraction of pure metallic flakes.
B) resemble the composition of Earth's core.
C) contain a lot of iron and were used by humans to make iron tools.
D) resemble the composition of Earth's mantle.
E) resemble the composition of rocks from lava flows that occurred on asteroids very shortly after the formation of the solar system.
A
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Primitive meteorites can be distinguished from other meteorites and terrestrial rocks because they
A) contain a noticeable fraction of pure metallic flakes. B) resemble the composition of Earth's core. C) contain a lot of iron and were used by humans to make iron tools. D) resemble the composition of Earth's mantle. E) resemble the composition of rocks from lava flows that occurred on asteroids very shortly after the formation of the solar system.
The mass of an atom of carbon-12 (Z = 6) is less than the mass of 6 protons and 6 neutrons because of binding energy
Indicate whether the statement is true or false
________ galaxies may bridge the gap between spiral galaxies and quasars
A) Hickson B) Arp C) Core-halo D) Seyfert E) Hubble
A 20.0 cm long organ pipe is filled with air and is open at one end and closed at the other. The velocity of sound in air at 0
is 331 m/s. What is the frequency of the fundamental mode?
A. 414 Hz B. 387 Hz C. 345 Hz D. 302 Hz E. 295 Hz