Final answer:
The force on gamma by alpha is determined by the interaction between the magnetic field and the motion of the alpha-particle. The force experienced by the alpha-particle can be calculated using the formula F = qvBsinθ. For the given situations, the force on gamma by alpha is 0 μN.
Step-by-step explanation:
The force on gamma by alpha is determined by the interaction between the magnetic field and the motion of the alpha-particle. The force experienced by the alpha-particle can be calculated using the formula F = qvBsinθ, where q is the charge of the particle, v is its velocity, B is the magnitude of the magnetic field, and θ is the angle between the velocity and the magnetic field.
For part (a), since the alpha-particle is moving in the positive x-direction, the angle θ between its velocity and the magnetic field is 90 degrees, resulting in a force of 0 μN.
For part (b), since the alpha-particle is moving in the negative y-direction, the angle θ is 0 degrees, resulting in a force of 0 μN.
For part (c), since the alpha-particle is moving in the positive z-direction, the angle θ is also 0 degrees, resulting in a force of 0 μN.
For part (d), the velocity vector is given as (2.0î – 3.0ĵ + 1.0k) × 10¹ m/s. The angle between the velocity and the magnetic field is 90 degrees, resulting in a force of 0 μN.