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The length of a metal wire is 10 cm when the tension in it is 20 Newton and 12 centimetre when the tension is 40 Newton. The natural length of the wire is centimetre? |
| Answer» The length of a metal wire is 10 cm when the tension in it is 20 Newton and 12 centimetre when the tension is 40 Newton. The natural length of the wire is centimetre? | |