A projectile was launched from a certain location on earth and landed a certain distance away. An astronaut on a ship, passing by at a speed of 0.75 c relative to earth, measures 0.658 s between the launch and the landing of the projectile. What's the proper time interval between the launch and landing of the projectile? Group of answer choices 0.715 s 0.658 s 0.288 s 0.435 s

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