-Un avión lleva una velocidad de 160 km/h en el momento en que inicia su aterrizaje y ha recorrido 1.8 km antes de detenerse. Determinar:
a) La aceleración
b) El tiempo que emplea para detenerse
c) La distancia que recorre a los 8 segundos de haber iniciado su aterrizaje

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?