8) An astronaut flies off in a ship away from the earth at 0.78c and leaves her husband at home. Which person will experience their clock moving slower? Explain your answer with the use of equations. Note – this is a communication question where you must use words to clarify what you describe.

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.