Describe and explain the action of optical fibres
particularly in medicine and communications
...
Answers: 2
Physics, 22.06.2019 12:50, johnthevarietyboy200
The heliocentric and the geocentric models of the solar system included these central principles
Answers: 1
Physics, 22.06.2019 16:30, JJlover1892
What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?
Answers: 2
Physics, 22.06.2019 22:50, cbogrett
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?
Answers: 1
History, 21.07.2019 08:40
Mathematics, 21.07.2019 08:40
History, 21.07.2019 08:40
Mathematics, 21.07.2019 08:40