<h2>
Oxygen is moving at 483.63 m/s</h2>
Explanation:
Kinetic energy = 0.5 x Mass x Velocity²
Kinetic energy = 6.21 x 10⁻²¹ J
Mass = 5.31 x 10⁻²⁶ kg
Substituting
Kinetic energy = 0.5 x Mass x Velocity²
6.21 x 10⁻²¹ = 0.5 x 5.31 x 10⁻²⁶ x Velocity²
Velocity² = 2.34 x 10⁵
Velocity = 483.63 m/s
Oxygen is moving at 483.63 m/s
A) According to the nebular theory, the Solar System formed from a huge gaseous nebula which at a certain point was perturbated. Atoms and molecules started colliding, forming planetesimals (a sort of big rocks). The planetesimals were attracted to each other by gravity, forming bigger warm almost spherical objects called protoplanets, which at the end cooled down forming planets.
Therefore the correct answer is "all of the above".
b) The planets closer to the Sun were (and still are) subject to higher temperatures, due to their close distance to the Sun. In these conditions, rocky materials undergo condensation, while iced gaseous materials undergo vaporization. In the outer parts of the Solar System temperatures are too low to allow these transformations.
The correct answer is again "all of the above".
Answer:
The mass of Ar is 36.91g
Explanation:
The gas mixture consist of Neon(Ne) and Argon(Ar)
Partial pressure of Ar = total pressure of mixture - partial pressure = 4 - 0.3 = 3.7 atm
Mole fraction of Ar = partial pressure of Ar ÷ total pressure of mixture = 3.7/4 = 0.925
Mass of Ar = 0.925 × molecular weight of Ar = 0.925 × 39.9 = 36.91g
It is called the atmosphere