Our planet is closed system because there is a limit of how much matter could be exchanged.
Answer:
heathy, people, apple, motivational, together
Explanation:
C. Because they are in the same group, so they have the same number of valence (outer) electrons
<span>longitudinal waves
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Answer:
v = 0.999981c m/s
Explanation:
Using the time dilation equation
T = stationary time = 100 years
T₀ = 11/12 years = 0.917 years
v = speed of travel in the space = ?
c = speed of light = 3 * 10⁸ m/s
v = 299987395.57 m/s
v = 2.99 * 10⁸ m/s
v = 0.999981c m/s