V = nRT/P
V = 0.685 mol*(.0821 L*atm/K*mol)*273 K/1 atm
Best visible at 9.pm during the month of August. (Sagittarius is best observed during the Northern hemisphere summer months) .. I hope this helped ?
The speed of light is 299,792,458 meters per second in vacuum.
It's somewhat slower in any material substance, and different in
each substance.
(That's 186,282.4 miles per second.)
Answer: Iron
Explanation: There are little minnerals that make it magnetic.