Air law

Classified in Physics

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converging lens - thicker concentrate long-sighted- hypermetropia makes objects larger 
diverging lenses - thinner disperse short miopia makes object smaller
speed of of sound in- air( at 20ºC) 340 m/s water 8at 0ºC) 1500m/s
intensity- sound can be loud or soft(suave fuerte)decibels/  pitch- can be high or low(agudo grave)hertz/  tone- identify the source of a sound with same intensity and frequency
heat thermal energy transfer by a difference of temperature from higher to low/  light is a form of electromagnetic wave energy straight line 300.000km/s /   is a form of mechanical energy wich is produced by a vibration always travel through a medium

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