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Look in a mirror for an example of a reflection. Lift your right hand, and watch your left hand lift in the mirror, or so it appears!In geometry, reflection is a mirror image of a shape, etc.For example: the triangle b is the reflection of triangle a.▲ a▼ b
Taking a ski lift to the top of a hill.
pulleys are important in everyday life because we needed to lift up heay weight objects that a human cant do in their everyday life so pulley is a very important simple machines to humanity.
A forklift will lift up to ten thousand pounds. A material lift is smaller and will only lift about five hundred pounds. There also a price difference if you know which one you need and want.
no, but the POTENTIAL energy may equal the work done to life the book to the shelf