In a(n) _____________reaction, one solid ? phase and a liquid phase react to form one solid phase ?.
Fill in the blank(s) with the appropriate word(s).
peritectic
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According to the nebular theory, how did the Kuiper belt form?
A) It consists of objects that fragmented from the protosun during a catastrophic collision early in the formation of the solar system. B) It is material left over from the interstellar cloud that never contracted with the rest of the gases to form the solar nebula. C) It is made of planetesimals between the orbits of Mars and Jupiter that never formed into a planet. D) It is made of planetesimals that formed beyond Neptune's orbit and never accreted to form a planet. E) It is made of planetesimals formed in the outer solar system that were flung into distant orbits by encounters with the jovian planets.
A positive point charge q is placed at the center of an uncharged metal sphere insulated from the ground. The outside of the sphere is then grounded as shown. Then the ground wire is removed. A is the inner surface and B is the outer surface. Which statement is correct?
a.
The charge on A is ?q; that on B is +q.
b.
The charge on B is ?q; that on A is +q.
c.
The charge is 
on A and on B.
d.
There is no charge on either A or B.
e.
The charge on A is ?q; there is no charge on B.
The sum of the kinetic and potential energies of an object is conserved only when the object is under the influence of conservative forces
Indicate whether the statement is true or false
The largest units of geologic time are called ______________
Fill in the blank(s) with correct word