ocr: Turning a faucet on and off If you were able to unwind a screw, like the one inside a faucet, you would end up with a long ramp. SHAFI RAMP Itis easier to push something up a ramp than itis to lift it straight up. The distance is further but the ettort is less. Ascrew thread works as ifit were a curled up ramp. This gives it a : mechanical advantage that helps you overcome the force of the water as you turn the faucet off.
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