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The 9.8 m/s^2 is the acceleration of an object due to gravity at sea level on earth. You get this value from the Law of Universal Gravitation. Force = m*a = G (M*m)/r^2. Here you use the radius of the earth for r, the distance to sea level from the center of the earth, and M is the mass of the earth.
Gravity is the weakest of nature’s four known fundamental forces, yet it is the most dominant force. Even though it is the weakest force, Gravity holds together the entire solar systems and galaxies. The free fall speed is consistent over the earth’s surface. This means all objects fall at the same speed.
Key points. Gravity is a force that exists everywhere. It pulls all things with mass or energy toward one another. We commonly experience gravity by being pulled downwards by the Earth. Gravity ...
Toda la información sobre 'Gravity' (2013): Tráiler, cartelera en cines, sinopsis, imágenes, reparto, críticas, curiosidades de 'Gravity'
Gravity depends on mass and distance and is an attraction between objects with mass.
Alfonso Cuarón's Gravity is an eerie, tense sci-fi thriller that's masterfully directed and visually stunning. Dr. Ryan Stone (Sandra Bullock) is a medical engineer on her first shuttle mission ...
Gravity is just geometry, the result of the curvature by massive objects of the space and time around them. The strength of the gravitational “ field ” at any point in space or time is just ...
