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

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

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

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