MUST HAVE NOW 1) Will a tablecloth that is 155 cm long cover a table that is 1.6 m long? Explain your answer
2) The ceiling in Jan's living room is 2.5 mhigh. She has a hanging lamp that hangs down 41 cm. Her husband is exactly 2 mtall. Will he hit his head on the hanging lamp? Why or why not?
PLEASE ANSWER WILL GIVE POINTS

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?