The three common phases of matter on earth are ________, ___________, and _______
Fill in the blank(s) with correct word
solid, liquid, gas
Physics & Space Science
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The discovered that the orbits of planets are ellipses.
What will be an ideal response?
Physics & Space Science
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.
Physics & Space Science
The rings of ____________ were discovered when they occulted a star
Fill in the blank(s) with correct word
Physics & Space Science
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
Physics & Space Science