Bonsoir 1-Comment appelle-t-on la technique utilisée ici pour recueillir le gaz?

2-Quel volume (V) d'air a été prélevé dans le ballon?

3-Calculer la masse (m)
correspondant a ce volume

4-Calculer la masse volumique de l'air (en g/L).

5-En déduire la masse de 1L d'air​​

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?