Physics, 21.07.2019 03:31 victoria6929
As thunder travels away from a lightning channel, the amplitude (loudness) of the sound by as the distance from the channel doubles.
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Physics, 21.06.2019 20:00
What happens to atoms and chemical bonds during a reaction?
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Physics, 22.06.2019 09:10
Which lists the organs in the correct order as food passes from the mouth to anus?
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Physics, 22.06.2019 22:00
Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere
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Physics, 22.06.2019 22:50
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?
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As thunder travels away from a lightning channel, the amplitude (loudness) of the sound by as the...
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