Physics, 30.09.2019 10:30 maxdmontero
Within the range of 0°c to 4°c the specific heat of water doubles when the temperature decreases, whereas the specific heat of most substances is halved.
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Physics, 22.06.2019 18:40
Smallest intensity of a stimulus that you can detect 50 percent of the time is
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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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Within the range of 0°c to 4°c the specific heat of water doubles when the temperature decreases, wh...
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