The astronaut would go the opposite direction due to Newton’s third law of -10N, -10N, -9N, -9N
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It's called buoyancy. It is the tendency of an object to float
The natural factor that is most likely to support the formation of an oceanic island is the rise of magma from the seafloor. Oceanic islands are also otherwise known as volcanic islands. When volcanoes erupt, they create layers of lava that break the surface of the water. When the tops of the volcanoes emerge, an island is created.<span> </span>
