Angle between the proton's velocity and the field is 42.86°
Step-by-step explanation:
We know that
Force = Charge x velocity x Magnetic field x sin of angle between velocity and field.
F =qvB sinθ
Here we have
q = 1.602 x 10⁻¹⁹ C
v = 4.80 x 10⁶ m/s
B = 1.52 T
F = 7.95 x 10⁻¹³ N
Substituting
F =qvB sinθ
7.95 x 10⁻¹³ = 1.602 x 10⁻¹⁹ x 4.80 x 10⁶ x 1.52 sinθ
θ = 42.86°
Angle between the proton's velocity and the field is 42.86°