Answer:
19080667.0818 m/s
0.637294 m

Explanation:
m = Mass of deuterons = 
v = Velocity
K = Kinetic energy = 3.8 MeV
d = Diameter
B = Magnetic field = 1.25 T
q = Charge of electron = 
t = Time = 1 s
i = Current = 350 μA
Kinetic energy is given by

The speed of the deuterons when they exit is 19080667.0818 m/s
In this system the centripetal and magnetic force will balance each other

The diameter is 0.637294 m
Current is given by

The number of deuterons is 
B. third
for every action there is a reaction*
d. none of the above
pressure affects volume not the other way round
Answer: Heart can beat 140 times in = 2 minutes