A 5kg box slides down a ramp at 0.1 meters per second hits and sticks to a 4kg box that it is not moving. What is the velocity of this system after the inelastic collision happened. A. 0.044m/s

B. 90m/s

C. Impossible to determine with the information given.

D. 0.056m/s

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?