Answer:

since the direction of force is along south so the magnetic field must be upwards
Explanation:
Force on moving charge in magnetic field is given as

here we know this is force on proton
so we have


also we know that the velocity of charge is

now from above formula we have


since the direction of force is along south so the magnetic field must be upwards
Yes that would be correct. But if its an essay I'd be a bit more elaborate and give examples.
Answer:
24°
Explanation:
sin(34°)/sin(x)=v2/v1
x=arcsin(2,1*sin(34°)/2,8)=24°
Answer:
you forgot to attach the image
The first form of vegetation would probably be moss