The three common phases of matter on earth are ________, ___________, and _______
Fill in the blank(s) with correct word
solid, liquid, gas
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The discovered that the orbits of planets are ellipses.
What will be an ideal response?
A rock is thrown at some angle above the horizontal with a certain velocity. It reaches its highest point and starts falling down. What is the velocity of the rock at the highest point of its trajectory?
A) 0 B) 9.8 m/s C) It is equal to its initial horizontal velocity. D) It is equal to its initial vertical velocity. E) It is equal to its initial velocity.
The rings of ____________ were discovered when they occulted a star
Fill in the blank(s) with correct word
Distant galaxies are more likely to be irregular in shape than galaxies closer to the Milky Way
Indicate whether the statement is true or false