The correct answer is: Option (D) 6 aluminum and 9 oxygen!
Explanation:
Since the one molecule of aluminium and oxygen is Al2O3 (Aluminum oxide). It has 3 oxygen atoms and 2 aluminium atoms. It find the atoms for the 3 molecules, multiply them with 3.
3 * 3 oxygen atoms = 9 oxygen
3 * 2 aluminum atoms = 6 aluminum ( Option D)
The slope of the line on a velocityversus time graph is equal to the acceleration of the object. If the object is moving with an acceleration of +4 m/s/s (i.e., changing its velocity by 4 m/s per second), then the slope of the line will be +4 m/s/s.
The equation relevant to use here is:
v^2 = v0^2 + 2 a d
where,
v is final velocity = ?
v0 is intial velocity = 193.8 m/s
a is acceleration = 13.5 m/s^2
d is distance = 2370 m
v = sqrt [193.8^2 + 2 (13.5) 2370]
v = 318.67 m/s