A student performs a lab measuring the velocities of toy cars of different masses. A 3 column table with 5 rows. Column 1 is labeled Car with entries Car 1, Car 2, Car 3, Car 4, Car 5. Column 2 is labeled Mass in kilograms with entries 5, 5. 5, 6, 2006. 5, 7. Column 3 is labeled Velocity in meters per second with entries 2. 2, 2, 2001. 35, 1. 90, 1. 35. Which cars have the same magnitude of momentum? Check all that apply. Car 1 car 2 car 3 car 4 car 5.

Difference between series and parallel circuits

Frequency of electromagnetic waves that a radio station is assigned is called

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?