The process of planet formation in the early solar system is best described by which of the following terms?
A) precipitation
B) consolidation
C) condensation
D) crystallization
C
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A 4.0 kg mass has a velocity of 12 m/s to the WEST. The 4.0 kg mass undergoes an acceleration of 2.0 
to the WEST for 3.0 sec. What is the velocity of the 4.0 kg mass at the end of the 3.0 sec interval?
A. 18 m/s to the WEST B. 6.0 m/s to the WEST C. 0.0 m/s D. 6.0 m/s to the EAST E. 18 m/s to the EAST
Which of the following statements about electron degeneracy pressure and neutron degeneracy pressure is true?
A) Electron degeneracy pressure is the main source of pressure in white dwarfs, while neutron degeneracy pressure is the main source of pressure in neutron stars. B) Both electron degeneracy pressure and neutron degeneracy pressure help govern the internal structure of a main-sequence star. C) The life of a white dwarf is an ongoing battle between electron degeneracy pressure and neutron degeneracy pressure. D) In a black hole, the pressure coming from neutron degeneracy pressure is slightly greater than that coming from electron degeneracy pressure.
Which condition of motion must be met with regard to a charged particle if it is in the process of emitting electromagnetic radiation?
a. accelerates b. moves at the speed of light c. moves at constant velocity d. moves parallel to a uniform magnetic field
If an object's velocity is doubled, its momentum is
A) halved. B) unchanged. C) doubled. D) quadrupled. E) dependent on its acceleration.