A student observes the following correlation: the time a projectile is in the air (t total)increases as the original horizontal speed decreases (vox) and as the original vertical speed(voy) increases. The student wishes to determine which factor (vox and voy), if any, is related to t total in a cause-effect manner. Which experiment could be performed to resolve the issue

Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?