Which best contrasts electric doorbells and audio speakers?
doorbells involve rapid cha...
Which best contrasts electric doorbells and audio speakers?
doorbells involve rapid changes in the direction of current, and speakers do not.
speakers involve rapid changes in the direction of current, and doorbells do not.
doorbells require closed circuits in order to work, and speakers do not.
speakers require closed circuits in order to work, and doorbells do not.
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14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is
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