How does birds specially adopted to flight ?

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What do you know about the Fluorescent Tube?

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A solar collection has been installed to heat water. A large water tank has a volume of 5.0 x 105 cm3. The area of the solar collectors is 8m2. (2 meters by 3 meters). If the water in the tank starts out with a temperature of 30°C in the morning, what is its temperature in the evening after the sun has set?

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What is Vaporization ?

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Explain optical telescopes?

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Explain the Washing soda ?

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How can it be proved that the window glass id colored ?

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What is Solar Energy?

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How is the bullet in a man?s body located ?

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WHICH ONE FEELS COLDER METAL SURFACES OR WOODEN SURFACES?

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x- rays travel with the velocity of

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assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?

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