Everything with 1 symbol = Element
Everything with multiple symbols = Compound
Elements are the smallest particles (if we go further things start to get weird). Compounds are ALWAYS made up from elements.
I think so yes, it makes sense
Answer: 0.313 rad/s
Explanation:
The equation that relates the velocity and the angular velocity in the uniform circular motion is:
(1)
Where is the radius of the space station (with a diaeter of 200m) that describes the uniform circular motion.
Isolating from (1):
(2)
On the other hand, we are told the “artificial gravity” produced by the cetripetal acceleration is , and is given by the following equation:
(3)
Isolating :
(4)
(5)
Substitutinng (5) in (2):
(6)
This is the angular velocity that would produce an “artificial gravity” of 9 .
Density = 2.7g/cm3
mass =8.1grams
from density =(mass)/volume
we can determine the volume of aluminium by simply changing the subject of the subject of the formula from density to volume
so we have
volume=mass/density
=(8.1grams)/(2.7g/cm3)
=3cm3