What are the three main sources of internal heat for terrestrial planets?
A) conduction, differentiation, and accretion
B) accretion, differentiation, and radioactivity
C) accretion, differentiation, and eruption
D) convection, differentiation, and eruption
E) conduction, convection, and eruption
B) accretion, differentiation, and radioactivity
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Which of these is NOT considered a fine example of galactic collisions?
A) the Cartwheel Galaxy B) the Antennae Galaxies C) the Whirlpool Galaxy D) M-31 in Andromeda E) M-87 in Virgo
What is statistics used for?
What will be an ideal response?
Weight and g: The radius of the earth is R. At what distance above the earth's surface will the acceleration of gravity be 4.9 m/s2?
A. 0.41 R B. 0.50 R C. 1.00 R D. 1.41 R E. 0.25 R
A package is dropped from a helicopter that is moving upward at 15m/s If it takes 8.0s before the package strikes the ground, how high above the ground was the package when it was released? Neglect air resistance
What will be an ideal response?