Which statement best compares potential and kinetic energy?
objects always have more po...
Physics, 12.10.2019 18:30 princess239
Which statement best compares potential and kinetic energy?
objects always have more potential energy than kinetic energy.
only kinetic energy increases when the velocity of an object increases.
only potential energy decreases when an object’s height increases.
objects always have more kinetic energy than potential energy.
Answers: 2
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Answers: 1
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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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