What is the dramatic increase in amplitude called when the frequency of forced vibrations on a body matches the bodys natural vibration frequency?

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What is the wavelength of sound in air?

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the department of energys b-factory at the stanford linear accelerator lab is designed to collide electron and positron beams of unequal energies and producemillions of these particles, which are commonly called?

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Explain the Clouds and Rains ?

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Give one advantage of a scanning electron microscope over a transmission electron microscope?

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while calculating KVA using Volt and Ampere Reading, why we multiply the result with Square Root of 3 (i.e, 1.73)?

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Why are the days and nights equal at the Equator throughout the year?.

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What is the proper definition of light?

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Why dies starch stiffen the clothes ?

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How fast can a shadow move ? If a moth fly's in front of a very bright room temperature light powerful enough to light up Saturn like the sun could it's shadow move faster then light if there was no light diffusion.

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What is Alloy ?

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By which formula, the values in one thermometer can be converted into that of another thermometer ?

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