The most important effect in clearing the solar nebula of gas and dust was
a. impacts by planetesimals.
b. the solar wind.
c. the Sun's magnetic field.
d. the asteroid belt.
e. radiation pressure.
e
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Comets belong to the ________.
A. dwarf planets and Asteroid belt B. Asteroid belt and Kuiper belt C. Kuiper belt and Oort cloud D. Oort cloud and dwarf planets E. None of these choices is correct.
A car moves from a point located 26.0 m from the origin and at an angle of 35.0° from the x-axis to a point located 56.0 m from the origin and at an angle of 60.0° from the x-axis in 2.50 s
What is the magnitude of the average velocity of the car? A) 12.7 m/s B) 13.7 m/s C) 16.1 m/s D) 18.3 m/s E) 17.2 m/s
What is the molecular formula for benzene?
a. C6H6 b. C6H12 c. C6H14 d. C6H8 e. None of these
The mass of an atom of carbon-12 (Z = 6) is less than the mass of 6 protons and 6 neutrons because of __________
Fill in the blank(s) with correct word