Let's assume the rocket has a rest length of 57 m and the hangar has a rest length of 51 m. Additionally, assume the relative velocity between H & R (the speed they see the other moving at) is 0.61c. How long is the rocket according to H? Rocket length according to H = How long is the hangar according to R? Hangar length according to R =

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.