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Physics, 21.06.2019 17:00, tiffanibell71
What would the difference of spectral lines emitted by hydrogen gas in distant galaxies which is normally found at a wavelength of 21 cm on earth, be observed at 21.1 centimeters?
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
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Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
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Physics, 22.06.2019 15:50, janeou17xn
Decreased sensitivity to an unchanging stimulus is known as
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Three boards, each 50 mm thick, are nailed together to form a beam that is subjected to a 1200-N ver...
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