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1 yard = 3 feet.
So the correct answer is 3 feet.
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1 J = 10⁷ ergs (keyed as 107 ergs).
Hence the keyed answer is 107 ergs.
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Xerography forms an image using electrostatic charge patterns on a drum.
So the correct answer is electrostatic image making.
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Alpha rays (He nuclei) are positively charged.
Hence the keyed answer is Alpha Rays.
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A velometer measures speed of air (air velocity).
So the correct answer is Speed of Air.
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Sigmund Freud (keyed as Frend) founded psychoanalysis.
Hence the keyed answer is Sigmund Frend.
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