Question 9 is 100 N.
Question 10 is No, the bike's motion is not changing so it could be at rest or moving at a constant velocity.
Question 11 is Be doubled.
Question 12 is Ella is correct.
Hope i helped.
Answer:
Explanation: divide 280 by 68 which would = 4 I think
Answer:
By far most of the solar system's mass is in the Sun itself: somewhere between 99.8 and 99.9 percent. The rest is split between the planets and their satellites, and the comets and asteroids and the dust and gas surrounding our star.
Explanation:
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If the north and south pole crosses, radiations can enter Earth's atmosphere easily, continents will lurch in one directions causing natural calamities and species extinction.
<u>Explanation:</u>
- The North and South pole forms the Earth's magnetic field which protects us from harmful radiation entering the atmosphere. If these poles get flipped, a global cataclysm may occur.
- The continents will move to one direction causing massive earthquakes, rapid change of weather and climate and results in species extinction.
- Over the past 150 years, the magnetic poles are casually moving but now it is moving very fast which may result in a flip of the magnetic poles.
- Earth's magnetic field is what shields us from harmful space radiation which can damage cells, causing cancer, and fry electronic circuits and electrical grids. With a weaker field in place, This will disrupt the internal compass and many navigations may get interrupted