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8 problems. P1: 'Object is 3m from mirror. Image is ___ m behind mirror' (3). P2: 'Object is 50cm tall, 1m from mirror. Image height = ___ cm' (50). P3: 'You walk toward a mirror at 2 m/s. Speed at which you approach your image = ___ m/s' (4). P4: 'Minimum mirror length to see your full 180cm body =

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