Physics, 12.12.2019 20:31 ciarrap552
Acar is lifted a vertical distance in a service station and therefore has potential energy relative to the floor. if it were lifted twice as high, how much potential energy would it have?
1. the same
2. one half as much
3. unable to determine
4. twice as much
Answers: 2
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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 negligibleāabout 1 2000 of the protonās 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 ionās circular orbit?
Answers: 1
Acar is lifted a vertical distance in a service station and therefore has potential energy relative...
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