According to Newton’s law of universal gravitation, which statements are true? a As we move to higher altitudes, the force of gravity on us decreases.
b As we move to higher altitudes, the force of gravity on us increases.
c As we gain mass, the force of gravity on us decreases.
d As we gain mass, the force of gravity on us increases.
e As we move faster, the force of gravity on us increases.

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?