Most meteorites are
A) carbon-rich and primitive.
B) rocky and primitive.
C) carbon-rich and processed.
D) rocky and processed.
E) iron-rich and processed.
B
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Three point charges are placed on the x-axis. A charge of +2.0 ?C is placed at the origin, -2.0 ?C to the right at x = 50 cm, and +4.0 ?C at the 100 cm mark
What are the magnitude and direction of the electrostatic force that acts on the charge at the origin? (k = 1/4??0 = 8.99 × 109 N ? m2/C2) What will be an ideal response?
Briefly explain the purpose of the equation
Number of Civilizations = NHP × flife × fcivilization × fnow. What will be an ideal response?
As a Sun-like main-sequence star exhausts hydrogen in its core, it next becomes
a. a protostar. b. a red giant star. c. a white dwarf star.
A profound message from all of science is that we are a part of nature
A) that stands above other life forms. B) and have the ability to conquer it. C) that is becoming more and more conscious of itself.