An automobile travels at 63 km/h along a level road The vertical downward component of the Earth's magnetic field is 5.8 times 10-5 T. What is the induced emf between the right and the left door handles separated by a distance of 1.8 m? Would the charge in the car be to the left or right side of the car? a. Left side b. Right side

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?