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Objective Writing very large and very small numbers in standard form DATA Very large numbers such as: 4 504 000 000 Are not very practical to use in calculations so we can rewrite it like this: 4 504 000 000 4 .504 Number between 1 and 10 9 x 10 Power of 10 Write all of the distances from the sun in standard form Write all of the planets’ masses as normal numbers The gravitational pull of each of the planets in the Solar System is different and this will affect the velocity that a spacecraft would need to be travelling to leave the planet’s surface. This speed, known as the ESCAPE VELOCITY, depends on both the radius of the planet, and its mass 2GM R G = Gravitational Constant 0.000 000 000 0667 M = Mass of the planet (in kg) R = Radius of the planet (in m) DATA Very small numbers such as: 0.000 000 000 0667 Are not very practical to use in calculations so we can rewrite it like this: 0.000 000 000 06 67 6.67 Number between 1 and 10 -11 x 10 Power of 10 Calculate the escape velocity for each of the planets 2GM R G = 0.000 000 000 0667