In the southern hemisphere, the vernal equinox occurs on or around
What will be an ideal response?
September 23
Physics & Space Science
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Given the correct quantity, what are three essential components for complete combustion?
Physics & Space Science
What temperature is needed to fuse helium into carbon?
A) 5,800 K B) 100,000 K C) 15 million K D) 100 million K E) one billion K
Physics & Space Science
X-ray observations of elliptical galaxies reveal large amounts of very hot ________ in their interior
Fill in the blank(s) with correct word
Physics & Space Science
For general projectile motion if we neglect air, the vertical component of a projectile's acceleration
A) is always zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases. E) first decreases and then increases.
Physics & Space Science