The materials that made up the solar nebula can be categorized into the four general types as follows. Rank these materials from left to right based on their abundance in the solar nebula, from highest to lowest.
Answer: hydrogen and helium gas, hydrogen compounds, rock, metals
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What do we mean by a primitive meteorite?
A) a meteorite that is essentially unchanged since it first condensed and accreted in the solar nebula almost 4.6 billion years ago B) a meteorite that was discovered by primitive people C) a type of meteorite that is made mostly of high-density metals D) a meteorite that fell to Earth at least 4 billion years ago
You whirl a 2-kg body attached to a 1 meter cord around your head in a nearly horizontal circle with a speed of 4 m/s. The tension in the cord is _________
Fill in the blank(s) with correct word
If the potential in a region is given by V(x,y,z) = xy - 3z-2, then the y component of the electric field in that region is
A) x + y - 6z-3. B) -y. C) -x. D) x + y.
A 0.10-m long metal rod has a radius of 1.0 cm and a resistance of 3.2 × 10^-5 W. What is the resistivity of the metal?
a. 5.0 × 10^-8 W×m c. 10 × 10^-8 W×m b. 160 × 10^-8 W×m d. 1.6 × 10^-8 W×m