What are "dwarf planets"?
What will be an ideal response?
Dwarf planets are objects in the solar system that are in orbit around the Sun and are massive enough that their own gravity makes them spherical, but no so massive that they have cleared out all other objects in their orbit. So, for example, moons in orbit around a planet such as Triton around Neptune do not qualify, irregularly shaped asteroids and small comets do not qualify, but Pluto and Eris do fit this new designation.
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Kepler's Impact: In four years of operation, the Kepler satellite discovered nearly three times as many extrasolar planet candidates as had been discovered in the previous 15 years (since the first discovery of an extrasolar planet)
Discuss how these observations changed our understanding of the population of planets and of planet formation.
Two identical balls are at rest side by side at the bottom of a hill. Some time after ball A is kicked up the hill, ball B is given a kick up the hill. Ball A is headed downhill when it passes ball B headed up the hill. At the instant when ball A passes ball B,
a. it has the same position and velocity as ball B. b. it has the same position and acceleration as ball B. c. it has the same velocity and acceleration as ball B. d. it has the same displacement and velocity as ball B. e. it has the same position, displacement and velocity as ball B.
A(n) ______________ fault occurs as the result of expansive forces
Fill in the blank(s) with correct word
All know forms of life on Earth use _______ as a medium for chemical reactions
a. gaseous helium b. gaseous helium c. frozen carbon dioxide d. liquid water e. frozen water